Just FYI, the free WebPack 6.1i is now available and supports the Spartan-3 XC3S50, XC3S200, and the XC3S400. Also, the XC3S50 supported in WebPack
6.1i has four 18K block RAMs, four 18x18=36 hardware multipliers, and two Digital Clock Managers (DCMs)Xilinx WebPack 6.1i
Devices Supported in WebPack 6.1i
--------------------------------- Steven K. Knapp Applications Manager, Xilinx Inc. General Products Division Spartan-3/II/IIE FPGAs
--------------------------------- Spartan-3: Make it Your ASIC