Hello this is my 1st real Question

i was originally going to get a VU+Duo but decided to get the Gigablue Quad, at the moment on it's way from Finland

i have 3-500gig sata drives 2 that i used to use in my PC till i upgraded to 2 and 1 Terabit HD's and 1 that i took out of a Tivo box that i bought for £20 from flebay

then realized it would not work as a free view box i was originally going to put the Tivo's Western Digital in the Duo as it is already Linux - but the Gigablue only takes 2.1/2" drives

i have a 200gig 2.1/2" sata drive from a old laptop, would that be large enough to work in the Gigablue and use 2 of the others as external drives

i have 2 Samsung drives both HD501LJ's (500GB/7200rpm/16mb cache

the Western Digital is a WD500AADS/32mb cache

or would i be better of only using the 1 external drive and using the Western Digital as that has a better cache as by reading on here that speed isn't every thing

the reason i asked if the 200gig will be large enough is that i am not sure how many hours recording i will be able to get on it especially if i record a lot of High Def programs

Thanks in advance

regards norm