Need help - Asus P5E3 mobo. - 3 HDDs (200 & 2x500 )gig sata. - GForce 8800 GTS graphics card. My problems are what sort of DDR3 to buy with a £175 limit, should it 1x2gig, 2x1gig or 1 as much as can afford 1gig to aid future upgrade? are there any ways to test RAM other than putting them into the mobo? as the local computer shop claims that my last mobo was ruined by 1 or both of my 1 gig DDR2 modules and I would like to see if they are working (this is a long story.
Other things that I'm wonderering about are - do my HDDs have to be the same capacity to implement RAID 5 and I'm also looking for a wireless cable router for around the £100 -£150 mark.

Please any help on any of these issues or any other comments will be well apprieciated.

REMEMBER - That in an overheating world, it is increasingly important to stay cool !!!