I've read a lot of people recommending http://www.crucial.com for memory upgrade kits. I have also read some people recommending http://www.datamem.com - this is cheaper than Crucial. I checked http://www.dealram.com and found that there's a seller called http://www.18004memory.com that sells RAM for a lot cheaper than either of the above. For 1GB (2x512MB), the prices (before shipping and taxes) are: Crucial - $106 Datamem - $98 18004memory -$75 I believe all these are "unknown" brands, although they do give a "lifetime warranty". Do the members here have specific experience with bad RAM??? Would it be a gamble to go for the lower priced one? Or should I look for specific brand names for reliability? Thanks!