Bollox to it... It's the easeist domain to remember. It's just 3x the price.
Up to the club really...
With a .com it's going to cost £30 + $23.40 (£15) = £45 set up charges, and I don't know who's going to be in on paying that, as Chris still hasn't signed up or made much conversation here.
With .co.uk it's gonna be £10 + $23.40 = £25 set up...
It's just how convenient do we want the URL to be? rochan.co.uk does okay... plus we do want to be more or less exclusive to the UK. It doesn't really concern me that americans don't 'naturally get' our URL because we're using a strange foreign one.