Triple mic is just not going to be easy, dual mic takes a lot of work, my best recommendation would be to stick to finding the parts where one sounds good and fix other things in the chain.
Volume and size have been discussed before, so I won't go into too much detail, but to summarize the 'loudness' of the amp will be how you control three things. First is the amp's power section coloration - some amps don't color much at high loads (my impression is that Rectos and a few others are designed to not need excessive volume to add 'chunk'), others color a lot (EVH's early tone came from cranking the fuck out of a poor, abused Marshall that just needed a hug), and you need to figure out what yours does at different volumes. Apartments are bad for this, but you can always find a new one... unless you're in NYC, in which case your volume isn't as big of an issue anyway compared with the average New Yorker's conversation. Second is the speaker's excursion - the fucker wiggles more at higher volumes, and pushing the speakers harder gives more speaker coloration, which is why we have debates about V30s or G12T75s or Greenbacks or refrigerator magnets and duct tape or what-have-you; this will change the 'size' content often and reduce the 'fizz' apparent, so play with that. Third, occasionally, is the cabinet's movement - there's a reason why we make cabs out of specific woods and not the bones of the fallen or sheetrock or marble; strange as it may seem, getting the cab moving can have a good bit of input on the sound - not always the case, but useful to play with if you need it.
We could go for pages on pages about mic placement, and knob twiddling, and gain structuring, but we already have elsewhere so I will assume for now that you've read bits on proper techniques in those; if you don't have that, you'll need to get placement and tweaking under control before thinking about Waves, and if you do have that but you're still lacking 'size' we should try other things before you go off and spend money on Waves stuff - it's tasty and fun, but it's not magic in a box and it won't solve your problems completely.
Embarrassing as it may be, and vulnerable as it may make you, posting clips would help a LOT. We can pull together some links on threads that discussed power and loudness and suchlike, if you just can't find them, but sample clips would help determine what you're talking about much better than 'it's little' or 'it's soft' or whatever, so if you can do that we'll get much better help for you.
Jeff
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