If all you wanna do is roll down nice smooth cycle paths once in a while then it's pointless spending a fortune, summat like this would be more than up to the task:

http://www.chainreactioncycles.com/M...?ModelID=43251

Really is good exercise though, the weight will fall off you if you ride regularly, and what better way to chill out and get away from a nagging mrs, especially if the sea front is full of totty once the weather warms up a bit.