Well personally I'm going for a 225bhp Cupra R in either Black or Charcoal Grey, they have 4-pot brembo brakes at the front, large 18" alloys (although decent branded tyres will be close to £110 a corner fitted), and recaro sports seats in the front. They are all 6-speed, and have climate control as standard.
The only thing you can get on the non-R is leather interior, which really doesn't bother me for the sake of losing the brembo's and the better set up suspension (not to mention losing 45bhp

).
Are you sure insurance is the same across the range, for me, the non-R is a good £300 cheaper to insure, the Cupra R being group 17 insurance iirc.
Im looking at £780~ insurance for the Cupra R (225), and im 23, 3 Yrs NCD (soon to be 4).
By the way, its the same engine as the Audi TT 225 and Audi S3, and as such, a simple trip to the REVO lads will see the remap taking the car to 265~ bhp
EDIT: The cupra (non R) visually has different wheels, different bodykit, a different exhaust, and minute (in comparison) brakes!
Cupra R:
Cupra (non R):