Welcome to the forum, Sameer-
That's a nice budget for a build- very exciting!
Good choices on the components, although I would probably not get the Striker - if you want a 680i, I would go fo rthe evga- great service, lifetime guarantee, and the bios is maturing nicely- You seem to be limting yourself to ASUS, but there are lots of decent competitors out there, and ASUS' service is really shitty.
I would also probably skip the raptors and get seagate barracudas 320GB as they're only 100 bucks each and there's not mych of a performance difference, and for me, 150GB just isn't big enough. If money's not an object, you could always just add a 320GB in addition to the raptors.
There's some patriot pc8500 memory on sale right now at NCIX for 239 after rebate that runs 5-5-5-9 sale is ending soon, but it will be on sale again soon. MAke sure your memory is compatible with whatever mobo you choose.
http://www.ncix.com/products/index.p...t&promoid=1008
Also, you DEFINITELY want to check out the prices at NCIX and Direct Canada- very competative, and great service at both places. NCIX does price matching while checking out, so if you found something cheaper elsewhere, there's no need to order from two places.