The only new boards I know of at the moment that are S478 are made by Jetway and ASRock. Neither are especially good, but try and get one with an Intel chipset. Another possibility tis to try and track down an early shuttle or Biostar SFF case as these turn a pretty ordinary old PC into a quite attractive little system and they are usually pretty cheap these days. The last new one I saw was going for about £70 and for that you got the motherboard, CPU cooler, case, power supply and all cabling which is quite phenomenal when you think about it.