if you like you could send me what you've recorded so far and I'll have a go at EQing them

Thanks for the offer, but I think I'll go the Zoom H2 route. Since starting this thread I've become hyper-conscious of the noise the Mac's fan is making - either that or the Mac's been running hotter than usual over the last couple of days - and the idea of recording into a microphone that's right next to a powerful fan is starting to look a bit self-defeating.

If anyone's interested, here are a couple I prepared earlier - there will be more, and more recent, stuff up there as soon as can get to the shops (or eBay)!