well if its a mix for a CD to give to mates and clubs it doesnt really need mastering as such, but if u have the WAVES or other tools then just have a look around in the settings, if its for just a mix cd then try the Sonic Ultramaximizer there are some lovely settings on there including a high resolution CD master setting that seems to be ok, altho it increases the volume somewhat so get ready on ur master volume in Soundforge or Wavelab... i find Wavelab the best personally