get a bigger case - perhaps a mantis - not only much better value for money, but you will need it eventually - which means you may end up only buying one case...
don't expect to get a black maths - they are unobtanium - generally only available as part of a shared system
"some of the best base-level info to remember can be found in Jim's sigfile" @Lugia
Utility modules are the dull polish that makes the shiny modules actually shine!!!
sound sources < sound modifiers < modulation sources < utilities