Bob Jackson, first fixed!

Why don't you look for some 27" wheels? They'd fill in the gaps a little better and give you a shorter drop for your brakes.

Not sure about a black groupset on that frame really, but I'll wait to be proved wrong...

Just sat staring at the above picture and i think im going to leave the silver etc bits in, and the black groupset should be too overpowering.

The brakes will be silver, the front derailleur cage is silver, the chainrings are silver and the cassette is silver so it shouldnt be too overpowering..