Is the Canon 7D too advanced for a newbie?

[chee]

Or would I be better off with a Nikon D90?

I've been with Canon's my whole life (albeit point-and-shoot ones), so I guess I'm reluctant to leave them because I've sortof'grown' with them.

This will be my first DSLR and I want it to be a good one that I can GROW WITH. I cannot emphasize this enough; once I settle for this camera, it will be the ONLY one I will get in YEARS, so I want to be able to have a little bit of auto control for the beginning, but as time goes by I'm going to want to experiment and try new challenges and it's SUPER important that my camera can handle these.

Believe it or not I was considering the 5D Mark II but I KNOW I can't handle that one lol.

PLEASE help me in any way you can...Thanks in advanced
Pooky-- Thanks for being the only answerer so far :|...But the thing is I don't want a cheapy one...I'm really concerned about image quality, and I want above average performance. Also (don't shoot me) I kinda sorta maybe want the video mode.

I knowww it's gimmicky but it's just so COOL! I can't resist.

Anyways, I just want to be sure that I'll be able to do all sorts of things with my camera and won't be held back because it can't handle this or that much manual control.
Twiendee-- That's the thing though...I CAN'T upgrade. At least not for a good 3-4 years. Once I get this camera then I'm STUCK so I might as well make it good (my dad is willing to help me pay for a more expensive camera now). If I bought a T2i or whatever I'd be stuck with it for YEARS when I could have gotten something better to last me. Get it?
Allllright, thanks guys. I tend to freakout about this stuff often lol.

(Can you tell I'm overestimating my abilities? haha)

BUT (uh oh) I'm STILL not convinced about the T2i. I'M SORRY. I'm just...I don't know. I'm so confused now. So what about the D90? Still aiming too high? I saw it at the same price as the T2i so should I just do that, or will i end up lost?
Sound Labs-- But isn't the D300 of the same caliber of the 7D? If I were to get one of the two it would be the 7D, but now I'm considering the D90 if the 7D is too much to handle