Hrm, well, I suppose a fast lens'll serve you better for walking around the city, as an early priority. (And there's something to be said for a monopod, for that purpose, anyway) What do you have at this point, might be a good question.
As someone who's been on a very tight budget, I don't regret having gotten a deal a cheap, simple, but kind of oversized aluminum tripod a couple of years ago not something to carry around routinely, but trying to do everything with one item on the cheap would have meant it wasn't doing anything well all that time.
It'll mean that once I get some other things taken care of, I can salt away for something more carryable, and have it suit just that purpose perfectly when I shell out for it. I like to say, 'Tripods can be light, cheap, and steady, choose two.'
Steadiness is, of course, the purpose of a tripod: the only problem is that that doesn't help you much if it's being steady somewhere-not-where-you are cause it was too big to bring.
I'm sure that among us we can set you up. One nice thing about getting into the real tripod range is that, well, if you get a decent ballhead, (that'll be about half the price,) you can always put it on a different set of fancier legs.
Gooshin's right, though, if you get the nice thing the first time, it'll probably do ya.