I'm not a big fan of software raid because I just like the comfort level of a dedicated controller but for an HTPC at home it is certainly viable. Most newer motherboards have at least 4 SATA interfaces on board and I've seen up to 8. 4 x 320GB drives would give you nearly a TB of storage, which is really unbelievable to even think about. I think my Dad paid an extra $1500 to put a 5MB HDD in his original PC clone.

"That's some catch, that Catch-22." "It's the best there is." M22ti VP150 EP350 QS8 M3Ti