Thanks for all the comments and advice, seems that most agreed that
Makita is the way to go.

As it happens, on my way home from the station I pass a big old house
that's being converted to flats and they were working late yesterday,
so I thought I'd be a cheeky bugger and pop my head in to ask their
opinion. One of the guys had a 5703 which he recommended highly, I had
a quick fiddle and I liked the feel of it too. I've already had my
hands on a 5704 and the 5703 felt a bit more comfortable.

So I've bitten the bullet and ordered a 5703RK, I found one at £111
inc delivery, slightly over the £100 I originally budgeted - but the
only reason for setting a budget is so that you can be creative in
finding excuses to blow it :-)

Thanks again

Perry