Possibly not with a modular setup? There's some very nice all-in-one-box machines out there right now that might fill the bill at a better cost and with more simplicity. I know that if someone sat down a modular drum setup and a TR-909 side by side in front of me (from experience) that I'd go with the 909 unless the situation required something atypical as far as electronic percussion sounds...and even then, I'd still probably use the 909's trigger-out to fire that particular sound on the modular. Did that a bunch, in fact, and that might be a bit more indicative of what you might consider here as I was always able to come up with solid results.
As far as standalone machines these days, I'm all-in on the DrumBrute, but I should also note that Cyclone Analogic's TT606 and TT78 have my attention because of their sound and feature sets. Going backwards in time, some of the 'less-desirable' Roland boxes come to mind, like the TR-707 and its more collectable sibling, the Latinized TR-727. Even the not-so-classic TR-505 saw some use that tends toward your 'thick, bold' criteria; the Chicago band Big Black (ie: Steve Albini & co) made loads of use of this box on their tracks. You could, in theory, go backwards all the way to 'primitive' beatboxes as long as you had a tight bandpass filter to isolate a single, metric sound and pass that to a click-sync box like Bastl's Klik or Truetone's Time Bandit to lock it up with other devices. Again, that's from experience.
If you do go with a box like the ones above, then a simpler and more capable modular is a pretty easy thing to cook up. Once you get a trigger and/or clock pulse out of a few boxes and have them driving some more 'exotic' synthesized sounds, then things can get nice and complicated, musically, in short order. One you have a pulse of ANY sort, then you can use it for anything one might input a pulse into...sequencer clocks, VCAs, LPGs, filters, what have you. And to me, that's a better use of the modular architecture, to create a more open-ended sound programming environment rather than something that just does a one-trick sort of sonic vocabulary.