The trigger on my Encore wasn't too bad, but I still put Bellm's spring kit and another guy's overtravel stop in mine. My old Contender's trigger was fantastic.
I'm not sure I'd go with 7mmTCU. It's a fine cartridge, but you have to reload for it (and make your own brass if you can't find factory brass for it, which is what I did). 300BO can be found at Walmart. 357max isn't any better than 7mmTCU for ammo availability, but you can shoot 357mag and 38special through it. Also, if you already load those two, adding the Max is just a matter of getting the brass.
Chris