Not meaning to sound harsh but here it is in black and white.
1 - You're very very late to the party, building communities now is harder than ever and will probably cost you more the longer you leave it.
2 - Forums, great, ocuk has had a great run with this but let's face it the money is with the young and it's highly unlikely they'll follow the forum route but rather discuss tech through social networks, it's quicker and easier. Once in you're sitting on a goldmine like dare I say your competitors are.
3 - Effort, where's the ocuk blog ? Where are all the fantastic builds and technical insights ? Build the blog link it to your sites - gain traction and THEN explode it on social networks - Facebook <-> Twitter and ping it to hell and back.
4 - Failure with current twitter campaigns. Social networking is about engaging people. You can't start a campaign sourced from these forums. As I hinted forum folk and twitter folk are two different breads. It's like you're breaking every single social networking rule out there which brings me to ...
5 - Detrimental social networking presence. Continue with what you're doing at the moment and it'll be bad for ocuk - and I mean financially - An @Spie twitter account is also a bad idea as followers want to know about the real @Spie not what he does for a living.
Sorry I had to get this off my chest as I'm tired of seeing you guys fail at this.
Look at this way - I've been on Twitter from the very start and have linked forum topics on many occasions, if you had a twitter presence I would have linked you too.
Final nail in the coffin { fearing the ban hammer }, your competitors actively scan tweets, follow and engage this is probably a reason why I followed them back but I'm not the only one - around 30 odd in my circle follow them too but none of us follow @overclockers_uk.
I seriously hope you guys can sort this out ... please ?