iMac

Just got the iMac. Now what the hell can I do with it. So far I've moved movies, photos and music pretty successfully from the PC. I also created a movie and burned it to a DVD and published it to YouTube. Anyone else have any hot tips for what I need to do in order to enhance my Apple Experience?

2.66GHz Intel Core i5
2560 x 1440 resolution
4GB memory
1TB hard drive
8x double-layer SuperDrive
ATI Radeon HD 4850 graphics with 512MBEdit