Dobbo
Get into interval training. Be it bikes/running etc. Makes a huge difference. Avoid gyms, rip off. Get a spin bike, and do 3 to 4 sessions per week, in the comfort of your own home.
5 minute warm up. then 20 minutes going at 8 seconds flat out then 12 seconds easy pace then continue for 20 minutes, then warm down for 5. When u get some cardiovascular fitness going, start doing endurance rides doing 40 minutes at 80 - 120 rpm, including warm up and warm down. Get some bike knicks and a gel seat, an mp3 and forget the world for 40 minutes.

