First Time Build Advice on Choices and Tips

Ok So it's my first build. Want to use primarily for WoW, maybe SWTOR, SCII and Diablo 3, with the possibility of other games in the future. Would also like upgradeability, and would Love to get a SSD to install OS and WoW on instead of HDD.

Questions are as follows.
Is all of this compatible?

Where can I shave off $100.00 or so? Would really like to get this to $750 including OS without losing upgradeability or stats. I'm really set on the Intel CPU, and won't be overclocking. I really love that Motherboard too, but if something is comparable, I would consider it. Will probably be connecting this to my 32" HDTV, so HDMI out is neccessary on GPU, and I'd like to play games on mid-high settings at least.

Are there other things that I'm going to need to purchase that I haven't thought of? Extra fans or tools or whatnot?

Is it worth it to yank my HDD from my old rig and buy a SSD instead?

CPU- i5 2400 $190

MoBo- MSI p67a-GD65 (B3) $169.99

GPU- Sapphire Flex 1000328FLEX Radeon HD 6770 1gb gddr5 Video Card- $130

PSU- Cooler Master Silent Pro M600 RS-600-AMBA-D3 600w ATX 12v V2.3 Sli Xfire Ready 124.99 Combo for PSU & RAM

Memory- G.Skill RipJaws X series 8gb 240 pin ddr3 1333

HDD- Hitachi HDS721050CLA362 500GB 7200 RPM SATA 3.0Gb/s bare drive 69.99

CASE- Rosewill Challender Black ATX Mid Tower 54.99

Optical- SAMSUNG Black Sata DVD-Rom 13.99

WINDOWS 7 Home Premium 64 OEM $100


Grand Total 858.90 + 21.00 shipping



Thanks for all your help guys. Better pricing on other websites etc is completely welcome. I plan on making the purchases for this build as soon as this week or at the latest Feb 1st.