Don't whatever you do buy the cheapest one - you will regret it sooner rather than later as it won't do what you want (i.e. keep the camera still).
Personally I'd look at getting a triopd where you can choose the legs seperately from the head as it enables an upgrade path in the future.
If you want a model number to look at then the 190XProB with a head of your choice will be suitable for most applications, it doesn't go as tall as some but it is a very stable compact tripod for a reasonable price.