I'd agree with Rich4, who urged you to take the LSAT. The cost is fairly minimal, and you might as well do it as soon as possible if you want to get enrolled in law school in 2005. When I took it, I wasn't particularly sure I wanted to go to law school, but by the time I got my results, and embarked on the application process, I was ready to go.
One caveat, and this is my opinion only--no doubt others will have different views. You didn't say if you wanted to go full or part-time. Kent, DePaul, Loyola, and Marshall offer an evening program, which takes 4 years instead of 3. I went to Kent, and enrolled in the evening program, my rationale being that I would work full-time, and thereby reduce my loan amount. I did it, but did not particularly enjoy it, and wish that I had went full-time. Why? First, law school is labor intensive. There is a huge amount of reading, particularly in your first year, and it can be difficult to keep the motivation going when you are working a forty hour week, going to class for three hours a night, and trying to keep up with your other responsibilities. I would have done better academically if I had focused my attention on school, and bitten the bullet with loans. Second, a full-time job, along with night school, makes it difficult to take advantage of internships, clerkships, and summer associate programs. Certainly, if you do well, and are accepted into the summer associate program of a large law firm after your second or third year of night school, you would be well-advised to quit your current job to accept it. However, not everyone gets into these lucrative positions, and therefore, need to acquire experience in a different way, either through a lower paying clerk position, or through an unpaid internship. With a full-time job, it's very difficult. Third, night school does not offer the same social experience as full-time study, and I don't just mean social in the hanging out at bars, or going out to eat sense. I mean the discussion groups, the study sessions, the ability to take advantage of the various extra-curricular programs offered by the school. As noted above, after a days worth of work and school, most folks just want to go home. YMMV, of course, and I certainly knew people who found the evening program to be just fine, who distinguished themselves academically, and had no problem juggling work and school.
I've been practicing for 9 years now, and I like it. You might too, or you might decide its not for you. Still, a law degree is a useful tool to have, even if you don't practice, or leave practice after a few years. Talk to more people, think about it, and take the LSAT.