In reply to Ross.Cooper:
You might not think you'd ever be capable of onsighting/flashing those routes, but in a couple of years you may well regret having toproped them. Trout (Bamford), Make it Snappy (Gardoms) and Desolation Angel (Warncliffe) are the other popular E5/6 headpoints but are best saved for a flash.
I'd pick something a bit esoteric that you'd never want to onsight anyway
Milena and Gettin' Kinda Squirrelly at Rivelin are both great but a need a cool day
Cool Curl at Stanage
Gazebo Watusi at Burbage North
Dead Heat at Warncliffe
The gritlist will give you a few ideas too
http://gritlist.wikifoundry.com/page/E5%20Peak%20District