Right now, HEAL lot contract is for $70/month. It may end up being more next year, but it has been steady at $70 for a couple of years. First and second years really don't need to park in a garage. You'll learn that after first semester of first year, you rarely even come to school, so having contract parking is a waste of your money. Like Samoa said, getting an evening and weekend pass is a good idea, and it won't break the bank, but don't forget that street parking right in front of the school during those same hours is free. Now, there is no guarantee that you will get one of the coveted spots right in front of the building, but usually you can find something and then get one of the cops on bikes to walk you back to your car if the hour is late.
Also, someone mentioned class dues. That is a one time fee of $200 and it covers Cadaver Ball (which is put on and paid for by the first year class every Spring), and every party your class will ever have in the 4 years of med school. It may also pay for a few other little things here and there, and in the end it is a well-spent $200.
You also asked about the note service. First of all, never assume anything is going to be free. If it turns out that it is, celebrate. In this case, it is not free, though it is a very good deal. Every semester is a different price, because the number of lectures and length of notesets tend to vary. First semester will be something like $140-150, second semester will be about $175 and second year will be around $130-150 each semester. At the end of the second year, if your note service people have been on the ball, you ought to get some of that money back. We did. Budget for it as is though, and enjoy whatever you get back as a little lagniappe.
As far as insurance goes, expect the whole chunk to be taken out of your first loan check. That hurts a lot, so look out for it. A lot of people don't know it's going to happen that way, and their budgets get thrown off.
Also, second year you have to pay for the boards -- ~$450, plus study materials, like Q-bank and First Aid and anything else you haven't accumulated over the 2 years. Just look ahead to that. 3rd year you have to pay for step 2 and the clinical skills part, which is almost $1500 plus travel expenses, but hopefully they'll have that better worked out by the time you have to worry about that.
Overall, med school is expensive. Take out lots of loans, and don't look back.