Tvheadend

Hi.

I need help for mount a new server for a TvHeadEnd.

MB: Asus P5Q3 Deluxe
CPU: Quad Core Q9550
Ram: 4Gb DDR3 1600
HDD: SSD 30Gb + HDD 1Tb for recordings

I need help for capture from 1 LNB whit 4 outputs.

Which is the best card for mount my server?

Thanks.