Kingston sucks. Corsair is pretty good with their XMS and Value Select (lotsa bang for your buck) series. Crucial has only one good line of RAM, the Ballistix. OCZ has some pretty good RAM also.
I recomend getting about 2 or three sticks of mushkin black 2-2-2 edition, it just flat out rules, a little on the pricey side though, but if you can get a fatality board, price probably isnt an issue
when these get back in stock get some best ram ive ever used http://www.newegg.com/app/ViewProductDesc.asp?description=20-146-284&depa=1
BTW crucial ballisitix is good, but the timings on this mushkin ram are better, if your pressed for money go ballistix, if your not, go mushkin.