Okay guys, I've put off this decision but I need a new computer ASAP. It's either the top of the line fully loaded Dell XPS 9000 or the top of the line iMac 27". I'm going to be using Word and Excel, heavy video editing and gaming. My attraction to the iMac is that it's all built into the screen and the fact that macs don't slow down the more programs you put on it. The downside is that I've never had one before and don't know the OS, and I know my way around a PC in my sleep. Also, for gaming on an iMac I'll have to reboot the computer in bootcamp all the time (sounds like a pain). I don't want a custom-made computer though. Thoughts?