@ Dangeruss - It was dirt, not rust :-) Both rims are alloy, rear's a Rigida AS23X. Front's just labeled 'Rigida group'. Could give them a wipe and take a pic if you're interested. Must warn you - they're not fully mine, so will have to check if it's cool to pass them on if you do decide you want them. Let me know.
I've been using these brakes http://www.sjscycles.co.uk/product-Tektro-Tektro-R556-Dual-Pivot-Caliper-Brake-55-73-mm-Very-Deep-Drop-Nut-Fitting--Front-and-Rear-79.htm for a year or so.
Not very pretty, but cheap and do the job. Nut fitting as well, so you don't have to faff about drilling forks or putting back brakes on the front, etc.
@ Dangeruss - It was dirt, not rust :-) Both rims are alloy, rear's a Rigida AS23X. Front's just labeled 'Rigida group'. Could give them a wipe and take a pic if you're interested. Must warn you - they're not fully mine, so will have to check if it's cool to pass them on if you do decide you want them. Let me know.