Then go out and buy a Dell, with Ubuntu preinstalled. (OK – I realise that this is not particularly new news, but there you go.)
Currently they haven’t released these in the UK – part of me hopes they do, but I would then feel duty bound to buy one, which I can’t afford. 
Dell responded to a flood of requests on their IdeaStorm website to sell machines with Linux preinstalled, but I am seriously worried that much of the fervour would not be backed up by actual hard cash over the counter, and this would be a tragedy. So, if you’re in the US, and you’ve got at least $599 to spare, then why not give it a go? (And, lets be honest, $599 is not bad for a laptop, albeit slightly underspecced). It’s not about whether Dell are any good, but rather about seeing Linux available preinstalled on machines from mainstream vendors. And that is good for _all_ of us, whether we use Linux or not.
mrBen