Dunno EV, I have a Maclaren Quest, 2nd hand Maclaren of some description? Or cheapo job they do in Tesco? They have some for under £20. Mind you one or other of the Maclaren models is pretty much always on special offer in Mothercare etc.
I have a [[ http://www.mumsnet.com/Reviews/PushchairsFromBirth/841 graco citisport]] (I think mothercare do a version of this also) which has a nice big basket. Not much on ebay, I seem to recall, it folds down reasonably small, not an umbrella fold like the triumph. I can measure mine folded if you think it might suit. Goes pretty flat too for naps, reasonable hood. I got mine when we sold our Maclaren which I found had such a small basket and hard to use the brake. Ono problem I found was that the fold is a bit difficult to figure out (twist the handle & push button etc) but then it lives at mum's and I don't use it v.often! Handlebar is adjustable, but mum is short and has no probs with it!