Bought a Xbox360 slim 4GB matte black (Missing the HDD) I want to use a 3rd party 1TB 2.5 HDD and a SoftMod. I've done lots of modding so I'm comfortable doing just about anything (cutting/soldering). Ive been doing a lot of reading but I find conflicting info about whether I can use AND get full space from a 1TB HDD. Do I still have to buy a WD scorpio/velociraptor as the 1TB HDD or does it matter now? What are the dimensions/specs of the original HDD for SLIM (any size)? Does 8MB vs 16MB cache have an noticeable impact on performance? 7200 vs 5400 matter in terms of heat generated? What are some good softmod tut links these days? Thanks.