And, while we're there...
I'd like to sort myself out some dynamo lighting. This is a subject that I currently know very little about, other than the fact that I'd like to solve the problem of never knowing whether my light is going to last me the till I get home. I see that Spa Cycles are currently advertising a dynamo wheel plus Revo mk1 for £295. This is stretching my budget a bit, but if I keep my eyes closed while I hand over the plastic card thing and then just accept I won't eat for a few weeks, I might not mind this too much.
Is that actually what I want though?
I want something that's bright enough for me to be able to see down dark country lanes without too much trouble, preferably without blinding oncoming metal boxed people.
There are a whole host of other dynamo wheels on offer and a few other lights, everything obviously wildly varying in price, but I know very little about what to look for.
Any thoughts or recommendations, or anything I particularly should know, greatly appreciated

(and if anyone particularly thinks I'd be better going somewhere other than Spa, by all means please say)