In reply to Chi Cheng:
The priority is shoes as I'm struggling getting my toes in small places with my current ones, and a harness as I'll have to give the loaner back eventually. I've been recommended a DMM bug rather than an ATC, as apparently the rope can slip on the ATC if you put it in wrong.
I've seen the Go Outdoors sale, and looked on Bananafingers, but not keen to splash without trying the harness/shoes on first. I should be able to get to Shrewsbury town centre this week though, so I'm going to poke my head into Cotswolds and get a feel of what's available, then I can have a look at the various websites when I get home.
(Though I do get a 20% discount through work at Cotswolds, so they may be my best bet anyway?)