How bad is your hair? Like mine or worse? If you're at my stage, or perhaps a little worse, then propecia (proscar) is the way to go.. or so it seems. Add rogaine (minoxidil) if you feel proscar isn't working as well as it should or if you are impatient and are willing to shoulder the financial burden / side effects. 5 months on proscar already? A few more months and the side effects should have died down.. looks like you have to start from scratch.
Transplants are a bad idea unless your balding is very severe i.e a shiny bald scalp. If your hair is still there, just a little thin and whispy - finasteride/minoxidil/nizoral combo could do the trick. Give it one WHOLE year, then re-evaluate. If results are good, then stick with the regiment. Note that good isn't just classified as regrowth, but also stablisation of your hair line.
good luck! A year might sound like a long time, but it passes like a flash! I'm already upto month 7.