[Solved] 1st time build for i7 870...?

This is in addition to 1st post ( Best mobo/graphics for i7 870) to better fill in some blanks.

APPROXIMATE PURCHASE DATE: This week for motherboard! rest within next 1-2 months
BUDGET RANGE: Cumulative. Already expect it to be $500-800 for remaining parts (after CPU)

SYSTEM USAGE FROM MOST TO LEAST IMPORTANT: General Purpose, Adobe PS2, HTPC/Media Server (HD sound & video), misc. CAD work

PARTS NOT REQUIRED: keyboard, mouse, speakers, monitor(s), Still DO need graphics card(s), power supply, OS...

PREFERRED WEBSITE(S) FOR PARTS: newegg.com, zipflyzoom.com, buy.com, amazon... whoever's got best price/good customer service.
COUNTRY OF ORIGIN: USA

PARTS PREFERENCES: Planning on Windows 7 64bit, Intel SDD drives, others up in air as I gather all the details (nVida vs. ATI, etc...),
the core i7 870 surely may not the best start for the ideal/affordable build, but it was a gift, so it's what I got.

OVERCLOCKING: Maybe in time SLI or CROSSFIRE: Yes

MONITOR RESOLUTION: 1600x1200 x2, 1920x1080, +HDMI output to HD tv (1080i dlp)

ADDITIONAL COMMENTS: Although I need to get the mobo immediately, rest will be gradual as time/money allows. Striving for maximum fwd. compatibility such as USB 3.0, SATA 6b/s, best LAN bandwidth

The i7-870 is overpriced. I would use a 750, and OC that, and repurpose the money towards a nice USB 3.0/SATA 6.0gbs and a 5970.