I would write something in PHP with a MySQL backend because that's about the only "modern" thing I know.
Long time ago I did a lot of programming in various DOS languages, but beside my knowledge about database structures and some basic "start1-start2-finish2-finish1" rules of programming that's not of any use to me anymore. It's more of a problem because sometimes I know how to do it in those languages, but can't find a simple way to it in PHP. Most times that's also my lack of knowledge, because it happens very regular that I find a simple way to do it in PHP afterwards. Didn't follow any course about it, didn't have any proper education on it, only use the PHP-manual from PHP.net in CHM-format to find my way (beside Google ofcourse )
I'm thinking about starting another language beside PHP, but since I can do almost everything I need/want with PHP, it seems of no use. Beside that, I really don't know which one to pick. So I'll probably stick with PHP for the near future.