P.G.
The people that did my website (www.kid-express.com) did a really nice job. TX World. Contact ____@____.com and tell him P. at Kid Express Child Shuttle referred you. I needed something special in terms of the reservation form, so my budget was probably higher, but I found them to be very reasonable. They are also hosting my site, so they can deal with any spam/hacking/etc. problems that come up. They're a Texas company, so it's also nice to do business locally :)
Good luck!