I went with aluminum ones from proflowdynamics.com. bargainfittings.com wasn't carrying aluminum at the time (and still may not). I did what BobbyM recommended and got some silicon o-rings from oringsandmore.com. All in all i had roughly 8 sets of camlocks and permanent fittings on the plate chiller (4 extra male ends) with new o-rings for less than $50.
If you want to stick with all stainless then there's no doubt that you'll save loads by staying away from the triclovers. Set aside roughly $10 per connection assembly and you're still 1/3 from the price of the tri-clover. I think the o-rings I used to replace the rubber ones (supplied) were $5 for 30 (or something comparable to that).
I don't think you'll be able to justify tri-clovers unless you just want the things based on your personal preference.