I say Bloody Beetroots > crookers... crookers do better remix but Bloody Beetroots have better originals IMO. And Boys Noize is just freakish amazing at remixing while his originals can be a bit bland even though I am a fan.
Yeah i know Don Rimini well i'll check the others out.
Its not the software your using for the actual mixing mate, as the one I use works out at 700-800MB for a cd length mix. Once its recorded I then use an MP3 converter, you can then re-save your mix as a 128bit MP3 file which will never be more than around 75MB if your making a cd mix
I would recommend a programme called "switch" for this as its free, easy to use and you can select whatever quality MP3 you want