Your ram is very expensive and XMS2 is a disappointing line from Corsair IMO. G.Skill is much better at Price/Performance these days and you can possibly get.
Get these as they are literally half the price and they are amazing chips, I should know as I own them.
Get them and put that 150 bucks toward an 8800GTX.
Then get rid of the raptor and just run two seagate barracudas 7200.10 in RAID 0 and you will see pretty much the same performance for a lot cheaper.
That sound card is a really good one but are you an audiophile? I believe it's the best one you can get and there are others with pretty much the same quality for cheaper. It still might be a good idea though to go all the way since sound cards last fro a while so you can ignore me on that one.
Take the money saved from the ram and the raptor and upgrade yourself to a nice 8800GTX.