Go into the Mac swap thread and at the top of the page click on "Search Thread" then type Brighton into the search bar and hit enter. You'll now be shown a list of people from the Brighton area that have requested a Mac swap. Now all you need to do is PM them member who've requested a swap and ask them if they're still up for trading some macs.
how hard is that? LOL.................
Although I can tell you theirs only two other people from your area who wanna trade but I can tell you were to get hold of one of them if he still doesn't visit here.