Jess... I came in too late for this thread :P
Well I wil throw out my experince here just for the fun of it.
Currently, I am running (2) Seagate 36GB 15K.2 drives in RAID 0. As soon as I pick up an additional drive, I will be moving to RAID 5.
All of these drives are running of a single channel LSI Express 500 unit. I also have an Adaptec 131U2 and found that it wasnt worth crap! I bought the LSI off e-bay for a decent price and have been very satisfied with it.
Yes, U160 is more than enough for 2-3 drives.....4 begins to push the envelope (using 15K drives that is).
Let us know if you need any more information.
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Athlon64 X2 4200+ @ 2.5Ghz (250FSB x 10)
OCZ VX 1GB 4000 @ 250FSB (6-2-2-2 timmings)
DFI LANParty nForce4 Ultra-D
SCSI Raid 5 x (3) Cheetah 15K HDDs
LSI Express 500 (128MB cache)
OCZ PowerStream 520W PSU
ATI X850XT PE (Stock)
DTEK WhiteWater + DTEK Custom Radiator
Eheim 1250
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