it might seem like a deal but all the stuff it comes with (the lenses and the fisheye converter) sucks and isn't worth buying.
the lenses aren't very good for low light. the aperture (how much light the lens lets in) changes as you zoom, so it gets even worse for low light once you start zooming in. as a general rule, the longer the range of a lens, the worse the optical quality, and 75-300 is a very large range. based on the fact that you're wanting a glidecam, you'll probably want something a little wider than 28mm. on a crop sensor camera like the T2i, you might like the 17-50.
buying a T2i isn't a budget camera solution. I know the T2i by itself is cheap, but buying a DSLR requires multiple lenses, accessories, etc. You don't have to buy it all at once, but you will need to put a decent amount into it over a few months to build a decent setup. If you aren't ready to invest in quality lenses and such, a DSLR might not be the best choice for you.
But as I said, buy the 28-80 and 75-300 if that still seems like a worthwhile deal to you.