New system build -- Assistance please.

I'm looking to buy a new system and was thinking of building. My last system was purchased in CA from Future Shop and runs a Quad Core Q660 2.4ghz. I'm still running it today but it is about 5 years old and showing signs of dying on me. Periodically it will shutdown and then not turn back on easily. Typically when this happens I have to unplug all USB devices and then turn it on and plug them in one at a time. This indicates to me that I'm using the Power Supply to pretty much it's full potential.

After 5 years, I'm thinking that it is time to get a new system anyway. For the most part the power is sufficient, however recently (for the last year or two) I've been running Linux Mint 13 with a Virtualbox Windows 7 guest. The VB Windows Guest is on all the time as I need to be able to go back and forth for business. I quite often (but not daily) use Photoshop which is quite a bit more limiting now since I'm running inside a VB Guest. I'm fairly limited on ram in this machine but I cannot add any more (I'm topped out at 4GB). I set 1.6GB to the guest and the rest to my host. The problem is that in Photoshop I run into memory issues a fair amount.

The computer seems to be getting slower, but I'm doing a fair amount with it. As mentioned VB is open all day, then I run my regular apps, I also use it as a multimedia server (I have 4xHDD in it what has 10TB) running 2-3 tv/media devices.

I do a fair amount of transcoding converting my DVD's to my computer. I never play games, even if I do they are very small games without any real resource drain. I was just planning on using the onboard graphics card as a result.

So it is a well used machine. I also sometimes toy around with coding so on top of all that I'll throw in compiling software, etc.

My new build I want to be a work horse like my current one was. If I bought what I "needed" 5 years ago, I would have had to replace 2 computers since then. So, but spending a little more at that time I was able to get many more years with little upgrading (some ram and a power supply) over the years. I want the same thing out of my new machine.

Here is what I'm thinking of getting:
- Rosewill THOR V2 Gaming ATX Full Tower Computer Case
- PC Power and Cooling Silencer Mk II 950W High Performance 80PLUS Silver SLI CrossFire Intel Haswell Ready Power Supply
- Arctic Silver 5 High-Density Polysynthetic Silver Thermal Compound AS5-3.5G - OEM
- G.SKILL Ripjaws X Series 16GB (2 x 8GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-1600C9D-16GXM
- ASRock Z87 Extreme6 LGA 1150 Intel Z87 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard
- Intel Core i7-4770K Haswell 3.5GHz LGA 1150 84W Quad-Core Desktop Processor Intel HD Graphics BX80646I74770K
- Thermaltake Frio Overclocking-Ready Intel Core i7 (six-core ready) & i5 Compatible Five 8mm Heatpipes Dual 120mm Fans Intel & AMD Universal CPU Cooler CLP0564 - Retail
- ADATA XPG SX900 ASX900S3-256GM-C 2.5" 256GB SATA III MLC Internal Solid State Drive (SSD)
Total Price: $1,231

Opinions? Suggestions? I've spent the better part of today reading reviews and while I was initially thinking of going with AMD processors because they are quite a bit cheaper, it seems that Intel offers far superior performs for multi-threaded uses, which I think I qualify for since often I'm transcoding and working in the VB Windows Guest at the same time, scanning documents into Acrobat, etc.

Any help and suggestions would be greatly appreciated. BTW, my intention is to set it up as follows, so if anyone knows of any compatibility issues, please let me know:

HOST: Linux Mint 15
SSD: I will partition this 256 GB drive as follows:
1) 80GB mounted to /
2) 24GB mounted to swap
3) 24GB mounted to /opt
4) 128GB for holding the VB Guest Disk.VDI file

HDD'S:
1) 1TB Toshiba (stock with my current computer) mounted as /home
2) 2TB x 2 mounted for /media/storage (multimedia storage)
3) 4TB mounted for /media/storage (multimedia storage)