I've got a 2TB LaCie 2big Quadra that I use as my work drive for edits for (set to RAID 0). If I want to purchase new drives, do I have to go with LaCie's 2big spare drives...

(LaCie - LaCie 2big Spare Drive (http://www.lacie.com/products/product.htm?id=10327))

or can I buy something like this...

(1TB Samsung Spinpoint F3R HE103SJ 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive (http://www.storageaholic.com/deal/1tb-samsung-spinpoint-f3r-he103sj-7200-rpm-32mb-cache-sata-3.0gbs-3.5-internal-hard-drive.html))

and swap the drive out of the casing with the key lock?