When I got back into photography last year I thought I wouldn't wast money on an expensive tripod - after all, it merely holds the camera for hands free or longer exposures, so what's the big deal. It took only a matter of weeks to figure out that the $90 I spent was money thrown away, especially if there was a decent camera body and heavy-ish lens on the end of it - even light winds would cause movement on this wobbly legged thing.
So if you do go for a tripod, and you should, then get yourself a decent one. I now use the Manfrotto one (in my sig) mostly, but also picked up a Manfrotto mono with internal legs for a trip we are about to go on - smaller and lighter.
Just remember, the tripod you chose will potentially hold up a few thousand $$$ worth of gear - you need to be 100% happy that it will do it 100% of the time, safely and securely.