Hi, I'm currently a major PC user and former gamer, but gaming is behind me, and I'm getting sick of Windows. For my day job, I write business software mainly, but also low-level system stuff on occassion, including drivers for custom hardware. My biggest issue is whether to go for a MacBook Pro (13") or the bigger iMac. Portability aside, are there any major performance differences that are not simply down to processor speed? Can I make the Mac output surround sound for a home cimema system? Finally, does anyone here develop for Mac, and do they have any feedback? Thanks!