Advice on buying a BMW

[peter hh]

I'm currently looking for a second car to replace my run around that I use to travel to and from work. I've got my eye on a few bmw's, a three series, five series or an x5. My budget is around the 3 grand mark. I'm looking for the newer shape so around 2005.

I'd like something with some go in it and the x5 4.6 has caught my eye. Although I know it drinks fuel and would be an older model due to my budget.

Any advice or recommendations would be appericiated.