Newbie needs your opinion... which bike?

I just got a charge plug on monday....and fo £400, i don't think it can be beaten.
....it's a little on the heavy side tho.....and you'll need to buy a new set of tyres from the off, the originals aren't worth the rubber they're printed on.
It's my first single speed, and first rigid frame. my ass hurts.

I picked up one of these, and gotta admit they are fun for the price. Having just swapped back from an MTB, I'd forgotten how badly paved the roads in London really are....