Which is better?

[Jzegers24]

I currently have a Asus P5B mobo with no sata raid and im looking to raid 2 sata hard drives. Would it be better to get a new mobo with raid support or get a pci express card? Which offers better performance?

Also, how is this setup. Id like to install windows on a single rapter and raid 2x320gb seagate barracuda drives for storage in raid 0, would tihs be a good setup for large data file storage?

 

[xenotype]

First Question.
The pci-express RAID card is a better solution, it allows you to migrate the array to future systems, for expansion as well as troubleshooting. Plus, if you invest in a nice card you can take it from machine to machine.

2nd Question.
Good setup, excellent choice with the raptor. For storage, IMHO, you dont need the drives to be striped for enhanced performance, think of the storage array for archiving and such, unless you want to use it for a fast page file or scratch disk access. Just my 2 cents, good choices otherwise.

 

[Jzegers24]

bump

 

[Sparkyy]

Also, how is this setup. Id like to install windows on a single rapter and raid 2x320gb seagate barracuda drives for storage in raid 0, would tihs be a good setup for large data file storage?

RAID 0 and data file storage should never even be in the same paragraph together, let alone the same sentence! If you do not care about your data, then yes use RAID 0, other wise use either RAID 1 which would mirror the data or else get a third drive, same specs as the other two to make a RAID 5 array.