There are lots of options, you can check out the for sale forum here, sometimes a burner something like you want will come up for cheap.
Also, ebay is a good choice, but for this application I say go with a place like Computer Geeks (
www.compgeeks.com)
Here are some cheap burners from their site:
http://www.compgeeks.com/details.asp...d=CD-W516E-BLK This is a 16 speed Teac drive, it's new and only 38 dollars, it's black, but I don't think that matters.
This is your best option though,
http://www.compgeeks.com/details.asp?invtid=PCRW2412-R It's a refurbished 24 speed Phillips burner, comes with all the software you need and everything (the Teac above does not) for only 41 bucks.
Also another option you should consider is that a good friend might even loan you one for a day, that's all you'd need!
Good luck