Turt,
I went through the same thing you did a few years back. I wasn't able to truly make my decision until I had volunteered both in a hospital setting as well as a vet clinic. Once I was exposed to both it made my decision easier. HopefulUGA is right, you really need to experience it so you know what you are getting into and whether you are making the right choice. There are some logistical things to consider however. Let me just list the pros and cons of vet med that I considered while going through the process.
Pros:
You get to practice medicine! (I realize that's a pro for both professions, but anyway...)
Quality of life - as a non-trad (I'm a 30 yo female) I appreciated the fact that I could go through 4 years of school and decide after that whether I wanted to continue with a residency or just jump into practice. Also, the doctors I know work 7:30-5:30 and the occassional weekend. Not that I don't want to work hard, but it's something to consider if you want to have a family someday. Your malpractice insurance is much lower too!
Diversity - Even though we are a small animal clinic, we see so many different health problems and issues walk through the door. Also, as a vet you don't have to choose between surgery and medicine, you can do both. Granted if you don't specialize, the majority of the surgery will be soft tissue, but that's cool enough for me!
Cons - pets are still considered a luxury item and I think a lot of people feel funny spending thousands of dollars to fix a torn ACL or on cancer treatment, or even a couple of hundred dollars on lab work. That is very frustrating! There are so many cool thing vets can do these days, but they are held back by the owners' ability to pay for them.
Pay - if you want to make a lot of money, choose the med route for sure. But keep in mind, if you break your work day down to an hourly rate, MD's don't make much more per hour than DVM's do. My family doctor in fact told me that if she broke her work week down to an hourly rate, she'd make about as much as a busperson! Possibly an exaggeration, but you get the idea.
okay, sorry for the ramble, that's not even half of what i wanted to say, but i think i've said enough.
i hope this helps. Spend a day at a clinic and see how you like it. and let us know what you decide!