Best Workstation for deep learning (Pylearn2)

Hi there!

I am planning to assemble a high-end workstation that will be able to handle my deep learning (especially convnets with Pylearn2 and Theano) experiments.

Is there is a danger that Theano may not cooperate too well with some GPUs?

What would you propose to buy? I mean high end and expensive but not supercomputer, let's say up to $10 000 (I am a researcher and there is quite big budget to use).

Many Thanks, P