Help with deciding - E90 320D

Hi guys

The new car bug has bitten and i am considering getting an E90 320D SP.
Currently drive an E46 318i SP 2 (awesome car that is serving me very well)

Now i saw one 2011 model with 69K on the clock going for R250K. Car still looks brand new, Is this too much for a car like this?

Are there better examples for less etc?

Thanks