If I were you I'd seriously look into Gengis's idea about gliding. Compared to power it is extremely cheap and progress is usually quite rapid, and despite what you'd think ... especially so in the winter!
If you find a decent gliding club you'll find that only fog or very strong winds will curtail flying. Ok, so the duration of each flight will be short (typically 5-10 minutes in winter) but you learn in small bites without the "brain burn" that a 1 hour power lesson can cause. Turn around in the winter is quick as few gliders dissappear off on cross countries so IMHO this is ofte the best time to learn! Every flight from the first couple on will have you attempting to land, so you soon become far more proficient in that area than the average power student. Later in the spring as thermal activity increases, so do the duration of your flights. You'll soon be revelling in the hunt for lift and won't look back!
If young and full of aptitude you can easily solo by about 25 flights ... say 4-5 hours. In a power aircraft this will be more like 20 flights and 20 hours. Your gliding experience can count toward your PPL once a certain stage has been achieved and you will alost certainly be a better power pilot from having had your glider training.
It's certainly worth considering!
SS