what are your guys preferred rams?
GSkill Ripjaws - never had an issue with them and they have better cooling that most.
Price is usually competative as well.
Think I have Crucial in a couple machines, but if so it's been reliable enough for me to forget about it (which is a GOOD thing).
Crucial memory is always at a good price and is great quality (from my experience). Or get whatever big brand name that is on sale.