PLC supporting C programming

[sopic]

Could somebody tell me which PLC support C programming and if it's not requested some expensive device for that. In fact I'm new in PLC range, I want to buy one for learning purpose(so not so expensive) and I would like to use my C knowledge in this study. I mean... which PLC would be better, how coul I generate reports and save in Excel or Acces, or something else where I could use C. But the problem who rack my brain for the moment it's what PLC. I'm thinking about Allen Bradley or siemens... GE Fanuc seems quit cheap...
Sorry for mixing ideas but I'll take them in account for my investement.

I would be very gratefully if somebody could help me with some advices.

Anyway, this form is himself a very good tool.
Good luck all of you!