It's going to ultimately depend on what you regard as "not too expensive", and what weight you'll be able to carry - having a 'pod which is too heavy means you're less likely to take it out with you.
Unfortunately, with tripods there are three main things which people are looking for:
Low cost, low weight, good stability.
It's not possible to have all three....
I'd look at the Redsnapper range (plenty of posts here about them) or Manfrotto...