so... what satnav?

[goldilocks]

i have to buy a satnav
it's my dads birthday 16th october, and mum and i are putting in for a satnav
it will be his first one, so i don't really want anything too flash / confusing, unless he hates it / can't use it!

budget: £200 (£150 ish preferable)
wish list: will do satnav-y things (i really have no clue...)

the 'lad' in curries was no help what so ever, and i didn't really find the halfords buyers guide any use either

i was looking at either, tomtom one v3, tomtom one xl, tomtom xl european mapping
mainly because the brand seems to get a lot of respect - but i am open to suggestions

so which do i get?
and any ideas where will be the best place to buy?

thanks in advance