best system for 3D Modeling / Rendering (3ds max + sketchup) with 2000 $ help me plz???

wow thx but.??

asus sabertooth is best motherboard or gigabyte?
gskill is best memory ram or corsair?
I want to upgrade the system in the future

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Consumer Cards vs Professional Series Cards

As the results indicate, in many cases there is not a large difference between the consumer series cards and the professionals cards and at times the consumer cards even outperform. To ensure this is a balanced review and provides information required to make an informed decision, I've outlined some of the differences and benefits of the more expensive professional cards. I'll leave it up to you, the reader, to decide how important those items are for your pipeline.
NVIDIA

The following information was provided unedited from NVIDIA.

Why Choose the Quadro Workstation Board Over NVIDIA GeForce?

Today’s high performance consumer graphics boards while possessing extremely powerful graphics performance, are primarily designed for gaming performance, whereas professional visual imaging and 3D applications have more intricate needs that require additional features and a different balance in some aspects of the graphics boards features.
NVIDIA Quadro solutions offer features that provide additional functionality required by professional creative professionals:

• Accelerated Video Playback using the Adobe Mercury Playback Engine: The new Mercury Playback Engine in Adobe Premiere Pro CS5 give video professionals the ability to work with complex HD timelines in real-time without having to generate preview renders to see their final output. NVIDIA Quadro graphics are the recommended solution by Adobe for video professionals. (Supported on Quadro FX 3800, FX 4800 and FX 5800).

• Support for Professional SDI Output: Quadro FX also provides support for professional video output via SDI for film and video post-production and broadcast graphics. The FX3800/4800/5800 support 2 channels of SD or HD-SDI output.

• Application testing and certification: All NVIDIA Quadro FX graphics boards are consistently tested and certified with dozens of leading professional applications, providing guaranteed compatibility, stability, and optimization with the key professional applications in MCAD, DCC, oil and gas, and scientific visualization markets.

• Custom application drivers and utilities: NVIDIA Quadro FX boards offer enhancements vital to graphics professionals, including the 3ds Max Performance Driver for Autodesk 3ds Max and the accelerated AutoCAD Performance Driver for AutoCAD users.

• Support commitment of three years: NVIDIA provides support and driver updates for all NVIDIA Quadro graphics boards for three years from the date of introduction.

• Planned availability of boards for 18 months: With NVIDIA GeForce and other consumer cards, there is no guarantee how long the card will be available, but NVIDIA Quadro boards typically have an availability of 18 months, providing a more stable IT platform across your enterprise.

• Enhanced driver configuration: Designed to support the more varied needs of professional applications, Quadro drivers let users adjust settings for texture memory size, buffer flipping mode, anti-aliasing line gamma, texture color depth, stereoscopic display settings and overlay control–all of which are unavailable on NVIDIA GeForce cards. This allows users to customize DirectX and OpenGL settings that are important for professional 3D, Professional Imaging and Visualization applications.

• Support for G-Sync: The Quadro FX 5800, FX 4800 and FX3800 can utilize and optional G-Sync board to provide advanced multi-system visualization and multi-device film and video environments. The Quadro G-Sync supports frame lock, swap sync, stereo sync, and house sync.

• Support for SDI: The Quadro FX 5800, FX 4800 and FX3800 also provide support for professional video output via SDI for film and video post-production and broadcast graphics. The boards support 2 channels of SD or HD-SDI output, and digital and analog genlock.

OpenGL feature hardware acceleration and support:

• Hardware overlay planes: Enhances performance of 3D graphics when obscured by the cursor, pop-up menus, and other visual enhancements.

• Hardware antialiased lines: Vastly improves the display of 2D and 3D wireframe views in design and visualization software, at a higher performance level than on GeForce, and without taking extra video memory for oversampling.

• Two-sided lighting: Renders the front and back sides of triangles to ensure visibility of surface meshes and cutaway views, no matter the viewpoint.

• Windowed OpenGL quad-buffered stereo: Unavailable on GeForce cards, quad-buffered stereo gives designers a real-life perspective on their models while maintaining full double-buffering for the left and right views.

• Hardware-accelerated clip regions: Designed to handle the many windows and dialog boxes that can impinge upon the 3D graphics window, NVIDIA Quadro FX boards include up to eight clip regions, as opposed to the single clip region offered on GeForce cards.

ATI

ATI FirePro products are optimized and certified for many CAD and DCC applications.
ATI FirePro offers dedicated driver support via regular Catalyst software updates that are based on certified proven testing with leading professional graphics applications.
AMD offers direct customer access to a dedicated professional class technical support team.

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3ds Max
Looking at the overall rank of all tests averaged, the Quadro FX3800 offers the best all around performance in both 3ds Max 2010 and 2011. Looking more closely at the viewport modes however shows that there is very little difference between any cards regardless of manufacturer or model. Unfourtunately due to the underlying architecture of 3ds Max, the graphics pipeline is bound heavily by the CPU which prevents it from taking full advantage of the GPU. Hopefully future versions of the software will address this. The Quadro performance drivers give a slight edge over the ATI cards and GeForce cards in wireframe mode, but in most cases the differences are quite small in our tests, and generally in the range of 5-10 frames per second more. In Hidden line Smooth & Highlights mode, the results were for the most part very close to each other. Based on its ability to outperform on the Tunnel test, my recommendation would be for the GeForce GTX480 card.


SketchUp
In SketchUp the highest overall ranking card is the GeForce GTX285, however if you look at the frames per second for the various tests, every card performed almost identically. It's clear that SketchUp does not in any way take full advantage of the capabilities of any display card. As you are likely using other 3d applications or CAD software, I would base my selection on one of those performance metrics instead as SketchUp will not be affected by your selection.

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