I agree that I could simply go to IKEA and get off the shelf cabinets, but it wouldn't be nearly as much fun as making my own, and getting to toy with a CNC, would it?
In a way, this is my chance to justify getting one to the powers that be...

If going the pre-built route, could you please recommend reliable UK/EU based companies (even if using a few chinese made parts)? I was offered a quote from a UK company, but these forums have a few users complaining about that particular company, so I'd like to find alternatives, and then compare them with the DIY route, pricing my time into it.