Cheers for all the replies guys. I kinda knew you were all gonna recommend going to the gym but i know it would be too much hassle and commitment for me. I really don't want to commit to a monthly expense as i GUARANTEE i will not go as much as to get my monies worth.
Over the past few months i have been doing press ups and sit ups pretty much everyday for 20 mins or so (i know that prob sounds shit to you but it has made a difference) and been curbing the shit that i eat (or at least saving it for the weekends!!) Anyhow, i've seen an improvement and feel better etc etc but just thought i would buy some dumbells to add to my little "routine" but that's all i'm looking for really.
So the real questions is, which weights are gonna be best for me? Obviously i would prefer too heavy than too light so 20kgs a side do ok you lot reckon??