During the past 6 months I have upgraded my mac pro with a ATi 5770 plus 4 new 1 TB hard drives, 3 of them which I like to configure as a RAID 0. I haven't been able to figure out which RAM I need to buy since I find the market for RAM a bit confusing. I have been searching the forums for updated answers but could not find any updated info. I'm looking after getting at least 8Gb, which I believe should give me the best value for money optimization. Atm., I have 4 Gig RAM (2x1Gig & 4x512Mb). I stay in Denmark and I'm looking for a dealer that is doing international trading. I went to several shops online and found a similar price tag around USD 275. Among others I went to his site and got the following recommendation: http://www.crucial.com/store/mpartspecs.aspx?mtbpoid=1626055CA5CA7304 I found the price much higher than expected but I'm not really able to figure out if I need especially this RAM or if I could purchase some other ram less expensive? I was told that I have to look for ram with a built in "cooling" rib or something like that, otherwise the ram wil get too hot. But my source didn't seem to know that much..hope somebody can confirm/de-confirm I use my mac for professional image editing (LightRoom/Photoshop) and besides that I like to have windows installed for a bit of gaming (Company of Heroes, primarily) I have used bootcamp and a separate hard disk for that purpose but I like to find out if it is possible to run windows via Parallels or via other virtual machines - and specifically if that would require more RAM? In advance thx.