I know you already ordered something, but heck.. might as well toss in my two cents. Recently, I turfed the Canon strap that came with my RebelXS. I kinda like the logo on the strap, so people know I'm awesome, but I didn't care for discomfort it gave me.
It was a toss up between an Optech Super Classic, or the Crumpler Industry Disgrace. In the end, I went with the crumpler. I found it to be not as big/bulky as pictures online led me to think it was. I like that it has just a teensy bit of bounce, and the foamy padding right around the back of the neck widens the strap and makes it very comfortable. Really makes my camera lighter than it is. The Op/Tech was nice (and I like the buckle idea), but it just had just a bit too much bounce, and the Crumpler was definately more comfortable.
For a next strap: the Crumpler Industry Disgrace. One day in the distant future I'll try out a Black-Rapid style strap.