There are many options. Some of the cheaper ones have little or nor external memory, which might be an issue for some projects even though the internal memories

There are many options. Some of the cheaper ones have little or nor external memory, which might be an issue for some projects even though the internal memories in modern FPGAs are getting reasonably large. Some interesting vendors: http://www.xess.com/ http://www.xess.com/ http://papilio.cc/ http://papilio.cc/ http://www.terasic.com.tw/en/ http://www.terasic.com.tw/en/