I've bought a 2.2Kw spindle from eBay along with inverter. It was £247 including postage - I saved a bit via best offer. Having said that customs also charged £19 (well, customs charged less but DHL STOLE some)... so 7.7% added which isn't bad I guess. The spindle will arrive home tomorrow, but I'm at University so can't see it yet :(
ER20 collets have arrived for the spindle, and I've won some 4" extractor tube to sort out the dust issues. Hopefully.

Not much has happened since with the rest of the router. I've made and mounted the brushless motor as spindle, as detailed in another thread.

On a related topic I'm currently designing and prototyping a 120v, 10A ish stepper driver. It's going ok so far. I started prototyping with a H-bridge IC (to prove the principle) and got microstepping working with that. Now I've made a PCB with two N-channel H bridges on with power MOSFETs and a good heatsink.
When it's done I'll replace my PM752s with it.