Please do yourself a favor and do not buy a cheapy muzzleloader as your starter. For the $ 200 you have, you can look around and score a quality gun from T/C or Knight. I would suggest the Knight American or T/C black diamond. In addition several other models of T/C such as the firehawk and Thunderhawk inlines and several different model sidelocks are also available for under $200.00. In addition to the American, Knight also has the wolverine, Disc,and Disc Elite rifles which can also sometimes be found for around $200 or less as well. Personally, I'd stay with either the T/C Black Diamond or the Knight rifles due to their removable breach plug for ease of cleaning. These companies offer a lifetime warranty on their guns and they have some of the best reputations in the ML industry. You can check www.gunbroker.com / www.auctionarms.com / and www.gunsamerica.com for sales of these ML's. Many ML's can be shipped regularly with no restrictions or FFL required depending on your state's laws. Another good place to look is the clearance section of Wal Mart. As with everything in life, you get what you pay for.
The last time I was in Gander Mountain, they had the T/C Black Diamond Premium Pack with the gun and a lot of accessories for $199.00 as their everyday price. If you have on nearby, you may want to chck them out.