We have quite an active community in edinburgh, most of it is organised around http://techmeetup.co.uk/ techmeetups are once a month in edinburgh, glasgow and aberdeen (not this month in glasgow). There are various meetups that happen around other times as well, lean startups, functional programmers, etc, most of this can (or will soon) be found on the techmeetup site, also checkout http://startupcafe.co.uk as well.
on hackernewsusers it mentions you are from dundee, this month there was someone offering a lift from dundee to the edinburgh meetup, I dont know if he wil be doing it every month but theres a chance of a lift. There has been interest in starting a dundee techmeetup as well.
Hope thats helpful, you can catch me @daleharvey or emails in my profile, any questions you have would be useful, the techmeetup site is currently a large work in progress and its good to hear what information people want to find.