My first "modified flash" post.

Merry XMas by namethatnobodyelsetook, on Flickr

Taken using the kit lens, the built-in flash, and this nifty flash bouncer. Granted, I could do better with a 430EX, but I don't have one, and figured this could do the trick, cheaply. It's awesome in that it does work, and won't ruin all your shots with that "I used the built-in flash" look. However you're going to be using ISO 800, and will have some noise. You're not going to overpower the ambient, and shots with lamps nearby aren't going to have uniform white balance.

I figure there are other TDPers on a budget out there... for you, highly recommended.