Vesalia has got to be the most friendly Amiga-store left. I ordered some spare parts for my 4000T, and they actually sent me twice of each item just to be nice! :-o You can't get better service than that.
But e-mail responses were a bit slow though, had to reswend a mail to get a respond. But it's a serious and alive shop, no doubt about it. And when they ship they do it quickly.