Sega Saturn

Specifications:

CPU: 2x Hitachi SuperH-2 7604 32-bit RISC processors @ 28.63MHz
Graphics: Custom VDP 1 32-bit video display processor @7.1590MHz (NTSC), 6.7116MHz (PAL)
Custom VDP 2 32-bit video display processor @ 7.1590MHz (NTSC), 6.7116MHz (PAL)
Co-Processors: Custom System Control Unit (SCU) with DSP for geometry processing and DMA controller @ 14.3MHz
Hitachi 4-bit MCU, "System Manager & Peripheral Control" (SMPC)
Sound: Motorola 68EC000 sound controller @ 11.3MHz
Yamaha FH1 DSP sound processor, "Saturn Custom Sound Processor" (SCSP)@ 22.6MHz

Value: £30 - £40. Very common and not at all hard to find on ebay.

Emulators: SSF (translated by google). Satourne

Buy Sega Saturn consoles on ebay