Hi Madness,
I bought an Endura gridlock jacket with regatta waterproof trousers and endura overshoes( get the largest size ) + Bell cycle hemet with waterproof cover.. Even in the most ridiculous weather conditions ( whichs eem to be most of the time in the UK these day, I arrive at work or home after my commute 100% dry. I hae to negotiate some serious hills and I don't sweat that much in the jacket. It has zips and flaps that allow air to circulate. Well worth the money in my book.
Jacket = £40
Trousers = £15
Overshoes = can't remember
bw
musicbooks
Interesting, I have exactly the same jacket shoes and over trousers, which I agree are very good. Despite this I now only wear them in cold weather, as Mussells seems to.. I find I do sweat a lot and I get to work just as wet (perspiration wise) whether I ride my ebike or my Tricross, pretty much whatever I wear. At this time of year I tend to just wear a wicking cycling top and trousers (Lidl's finest!) and just get wet. If you are putting in enough effort you won't tend to get cold and in some ways the rain is rather nice keeping you from overheating

. It makes the shower at the end of it all feel very good

. This Tuesday I cycled home on my Tricross (no mudguards etc) in a torrential downpour (river coming down the hill towards me, drain covers lifting and water pouring up through them. Despite this, after a few minutes 'acclimatisation' to the initial shock of it and when fully sodden, it really wasn't that onerous a trip (8.25 miles, mostly uphill, with some very steep climbs).
Lycra clothing is surprisingly warm when wet, and still easy to cycle in, if you haven't tried it, you'll be pleasantly surprised. In winter I do wear the jacket (against the cold) and warm gloves, but would have to admit I don't wear the waterproof trousers any more I prefer the lycra, even when wet!
Phil