Hello there, fellow Canon-using glorious übermenschen. Even though your DSLR laughs at other, inferior models, it is in fact possible to improve upon perfection!
All silliness aside, there's a custom firmware hack out there called Magic Lantern. *warning: possibility of brick* It's primarily aimed at video users, but it has a lot of really neat features that have been absent in-camera. Time Lapse, HDR, etc... No links because I'm lazy, and this is a half-assed commitment, but Google will show you the way!
I've been using it for about a year now and I really like it. If you use your DSLR for video, it's indispensable.
*It may very well be available for other brands as well, I just couldn't resist parodying the fanboys.