Hi Beeps,
I really don't think you'll need freeze to be honest. The reason being, when you freeze, it takes longer (at least on my system) and you'd have to go on each track and un-bypass each bin. When you freeze, by default it literally freezes everything...the track fx bin and any plugs VSTi's, pro channel (though it really doesn't freeze it, it just globally shuts the track down at the top, but if you turned it back on you'd be double processing) and to me it's just the long way around really.
Again, it's a cool way to do things but I think bounce to track is faster and better to do with less work and clicks to be honest. Then you can set up your fx in pro channel or in the track bins. Freezing at THAT point makes more sense to me (due to plugin use) because it would take less time to freeze/unfreeze to make changes with just plugins on top of bounced audio, ya know? With freeze at the midi/vsti stage, it takes some time to have those drum tracks process through your drum module.
But like I said before, both will work. I say try both and see which one works better for how you use the program. Freeze may be better for you and may even be faster. I just hated the whole freeze and wait, unfreeze to make changes, freeze back, unfreeze to make changes....that just annoyed me to no end. So I just do a bounce, archive the original midi/vsti tracks and I'm working with old fashioned wave files and can process them in real time without freezing or the extra over-head of the drum modules I may be using.
That said, with a fast enough computer, none of it really matters. My system is so bad-ass (thank you God...and Jim Roseberry lol) I never have to freeze anything even when using Sonar 32 bit. If I start going nuts with synths, of course I do...but it's rare for me to use that many synths to where I have to start freezing things. When I use lots of synths, I just use Sonar 64 and then all is well. I'd stay 64 exclusively but need some of my old 32 bit effects that have never been ported to 64.
Anyway, try some of that stuff out and see what works best for you. I think you'll definitely like bounce though. Good luck man! :)
-Danny