Help with $800 custom rig

[Chizzah69]

Hey guys, I'm new here (duh) and would like to get some feedback on this rig I'm planning to build come end of July/start of August. I'm from South Africa but the CPU, Motherboard, GPU, and RAM will be bought in Korea:

[CPU]
• Intel Core i5-2500K Processor (6M Cache, up to 3.70 GHz)

[Motherboard]
• Gigabyte GA-Z77X-UD5H

[GPU]
• NVIDIA GeForce GTX 560 Ti

[RAM]
• CORSAIR Vengeance® 16GB (4 x 4GB) Dual Channel DDR3 Memory Kit

[SSD]
• Samsung 830 (64GB)

[HHD External]
• WD My Passport Portable (2TB, 3.0 USB)

[OS]
• Windows 7 64-bit

So what I'd really like to know is if this is a good rig for gaming at 1920x1080 and 1920x1200 with high/maximum settings for most games and for work concerning programmes for audio editing/production/etc like DAWs (Cubase 6, Reason, etc)? Also is 3.0 USB really as cool as it sounds and will putting my OS, Cubase, and 1 or 2 games (which can be replaced after I finished playing) on the SSD really be all that greater concerning loading time? Those are my main questions but I also have a list of secondary things I'd like to know please:

1) Will I be able to add another GTX 560 Ti in the future (SLI config) and what would that do for quality and performance?

2) What power supply and cooling system will be needed for this rig (SLI included in future) as well as an affordable recommended case?

3) Will I need to OC (CPU and GPU) for maximum performance and quality (especially in games) and if so how well can these components handle OCing?

4) Also is anything on the list incompatible with each other?

5) And finally an estimate of about how much it will cost me since I can't really find accurate prices on the net since my budget is at around $800)?

Thanks in advance.

 

[DeusAres]

The 560ti is fairly strong gpu, but it's getting dated. Why exactly are you getting a z77 board if you're getting a sandy bridge chip? Doesn't make since unless you're planning on upgrading in the future. I'd recommend just getting a z68 board...possibly a save a few bucks. I'd also just go with 8gb of RAM. 8gigs is already overkill...16gb is just crazy for gaming. It would save you $50 which you could just put towards a better gpu. I'd also trade out that external HDD for a 1tb seagate barracuda 7200 rpm 64 meg cache internal hdd. If you can, I'd also just do away with the SSD for now. Just upgrade in the future when you get the cash. Put that cash you saved from the SSD and external HDD to a better GPU.

You'll also want to get an aftermarket cooler if you plan on overclocking the cpu. something like this would work just great...
http://www.amazon.com/Cooler-Master-Hyper-212-RR-212E-20PK-R2/dp/B005O65JXI/ref=sr_1_1?ie=UTF8&qid=1341805787&sr=8-1&keywords=hyper+212+evo

I would also swap out that 560ti with this...
http://www.amazon.com/GIGABYTE-GeForce-mini-HDMI-Graphics-GV-N570OC-13I/dp/B0056GJLA8/ref=sr_1_7?s=electronics&ie=UTF8&qid=1341805837&sr=1-7&keywords=gtx+570

or this...
http://www.amazon.com/Gigabyte-Mini-Displayport-PCI-Express-Graphic-GV-R787OC-2GD/dp/B007PJVB3Y/ref=sr_1_11?s=electronics&ie=UTF8&qid=1341805915&sr=1-11&keywords=hd+7870

http://pcpartpicker.com/p/bBbZ
This will run you about $900. Sorry, you can also trade out the gpu for a hd 6870 instead and save about a $100. That would be the easiest way to make the budget. But if you want the superior gpu you can try tweaking a few of the other components so that it fits your budget. Hope this helps