The heigth of that model Vengeance, when installed to the mb's memory slot nearest the cpu, will interfere with the installation of most cpu air coolers.
IMO, in this oder:
Western Digital BlacK(ending in FAEX) and has the best warranty.
Samsung F3 also. 1yr warranty.
Seagate ok too. 1yr warranty
With os and programs on ssd, how much space do you want?
Sure. I would still get a hdd tho. Nice to be able to route docs, photos, and other things that don't benifit from the speed/pricey real estate.
If you want an SSD go for a Crucial M4, SanDisk Extreme 120GB or a Samsung 830. All in order from slowest to fastest but all faster than the Force 3.
Here's the 830, one of the fastest drives available right now http://www.newegg.com/Product/Product.aspx?Item=N82E16820147164
128GB is a nice size, 256GB would be great!
GTX 280? That's a card from 3 or 4 generations ago now. What's your budget for the graphics card?
Don't bother getting an EVGA FTW or any sort of overclocked card though, they're a waste of money as if you want you can overclock the card yourself and get the extra performance without spending the extra.
Here's a couple more that are very reliable.
http://www.newegg.com/Product/Product.aspx?Item=N82E16822152181
http://www.newegg.com/Product/Product.aspx?Item=N82E16820167086
Most of what we see is the response time and read time. The write times don't factor into the experience as much. The differences in r/w specs on a lot of them won't make much diff in use.
2GB is all you need for high resolutions right now but 4GB will be more future-proof. What resolution do you play at? Do you plan on gaming at a higher resolution or across multiple monitors in the future?