Thanks very much for the input guys...

In response to clive's question about the earth wiring, I had wired from a 13a plug to R, T and E (the E was on the same row, after the U,V,and W (not either of the ones attached directly to the casing)).

I will go ahead with the 2.2kw setup then...thats a relief that the spindle I already have is of use.

I had better go ahead with shielded cable all round then as Lady Luck seems to be doing the dirty on me at the minute...

I'll be back in a week or so with photos and a full build log (something of a 'how not to build a cnc').

Thanks again guys...really appreciated. Finishing line in sight!