I've just been riding with no focused goal, but to put on miles, i've noticed a difference in my legs already, they don't get as tired as they used to 4 weeks ago. But i'm going to take a week of because i'm sick right now. Then i'll start again with the pedaling. I'm not going to get a new bike right now, i bought a cool used one for $250. The frame is a Panasonic (kinda heavy) but the rest of the components seem to be of good quality. The bike feels really good, so i should just focus on "eat-less-move-more diet".
I don't know if it's normal but i've noticed that whenever i start to workout, in about a months time i always get sick, what the hell? I'll get over it soon and i'll get back on the bike. Laters!