get a separate internal PATA 2.5" for ~ 3k and a transcend casing ~500.
Why not WD?
WD gives 3 yrs warranty for the external passport series. (for ~3.8-3.9k)
The internal seagate will give you 5. :cool2:
Why PATA?
Casings are cheaper i believe. + over a USB connection, doesnt make a diff. If you find a decent SATA casing, then get the SATA drive. Almost same prices.