Card for RAID5 array?

[Whitebread]

I'mI need to put together a RAID 5 array for storage purposes. I need something that utilizes either the PCI bus or a single PCI-e lane. So far, I've only found PCI-e x4 cards and this which is a regular PCI card. I plan on using either 3 WD green power 1tb drives or 3 Samsung 1tb drives. Do you guys think this will make a good combination? Do any of you know of any good PCI-e x1 cards that have at least 4 internal SATA II ports?

Thanks.

Edit: oops foundthis