Dear bigmouth,
This is coming from a guy who learned to throw a baitcasting reel by starting with a Pflueger reel spooled with 15 # test dacron line and a South Bend steel rod. Trust me when I say this, if you want to learn to use a baitcaster you need to learn from the very beginning.
You can find a good usable baitcasting reel at a garage sale or flea market or even a pawn shop and you won't spend more than $ 15.00 to $ 25.00 on it. You might have a neighbor or friend that will give you one if you ask nice.
Take it home and sit down and slowly take it apart and clean it up really good. Don't worry about rebuilding drags or taking sub-assemblies apart. Just pull the cover plates and clean everything with denatured alcohol or WD-40. Get all the old grease and crud out first. Re-assemble it and lube it with Penn or Abu reel oil and you'll be fine.
Re-spool the reel with cheap 10 to 12 pound test mono and mount it on a rod. Get yourself a couple of those old rubber practice plugs, set up a trash can lid or some other sort of target in the yard and give it a try.
Yes you will get tangles and bird's nests, yes you will curse and stomp your feet, but if you stick with it in a couple of sessions you'll figure it all out and you'll be proud of yourself for accomplishing something.
Then all you have to do is put some quality line on the reel and go fishing.
Regards,
Tim Murphy