I'm about to open up my iMac G5 iSight and replace the stock 250 gb hard drive with a terabyte drive. While I'm in there, I want to replace my failing Superdrive. It won't burn anything, it can only read discs. Can I use any internal slot loading drive? I'm looking about on Newegg and I'm a little confused as to what my options are. I WILL NOT go external for a HD or DVD drive. To me that defeats the point of an all-in-one computer. By the way, this is the THIRD time the Superdrive has failed on me, this is just the first time it has while out of Applecare. So weak. Thanks in advance!