Three come to mind that are worth considering:
1. Uwatec Master Diver - my favorite, I've got a couple that I've been very satisfied with. Easy to read, good luminescence, very accurate. The rubber boot is soft, and easy to slide on and off to change hoses. I understand that they're impossible to find now, and that they've been discontinued. There may be some old stock left that your shop can order for you.
2. Scubapro - I've got a few of these (the full-sized ones, not the mini versions). Always worked pretty well, reasonably priced. You can get it with a hard rubber boot, but they're tough to get on and off to change hoses. For stages, I just use them without the boots and with a 6-inch hose. I've got a couple of primaries that I use with the boots, simply because it's got a little eye thats handy to tie a snap to.
3. Diverite - A buddy's got one and is pleased with it. Nice big numbers, easy to read. Don't even need my bifocal mask to see it. Seems pretty comparable to the Scubapro, but with larger numbers. Slightly larger footprint, too.
Just make sure to get a brass case and a mineral glass lens for durabilty. A lot of these gauges are made with a plastic case, and I'd personally stay away from them. Of course, Uwatec's got a digital SPG, but it sounds like you trust air-integrated electronics about as much as I do. And use a stainless snap to attach it to your waistbelt D-ring, not a brass one. For primaries, I like a 24-inch hose, and it seems like a lot of these come with a 30-inch hose. The shorter length doesn't stick out as much, and is more streamlined.
I think in this case, small and bulletproof don't necessarily go together. The largest SPG, in a boot, is going to be significantly smaller that those bulky consoles.
Just my $0.02.