Lattice ECP5 Versa Development Kit - US$199
http://www.latticesemi.com/en/Products/DevelopmentBoardsAndKits/ECP5VersaDevelopmentKit.aspxIt looks to be an LFE5UM5G-45 part, with 72 DSP blocks
Comes with 1 year license for the tools.
I've never used Lattice tools, but it seems to tick all the boxes at a low cost. Features:
- Half-length PCI Express form-factor : Allows demonstration of PCI Express x1 interconnection
- Electrical testing of one full-duplex SERDES channel via SMA connections
- USB-B connection for UART and device programming
- Two RJ45 interfaces to 10/100/1000 Ethernet to RGMII
- On-board Boot Flash : 128M Serial SPI Flash
- DDR3-1866 memory components (64Mb/x16)
Mike