Got a certain budget? Just like most gear, you can get anything from super cheap to thousands of dollars.
You'll want to decide carbon fiber or aluminum. Carbon fiber is light and awesome, but way pricier than aluminum.
If you are going to do a lot of panning and gridding hillsides, you might want to think of getting a pan head vs. a ball head.
Gitzo's are sweet, but on a budget you can buy Gitzo knockoffs (Benro) that are pretty good for the price.
Have always been a fan of Manfrotto too, which has a pretty wide range of price options.