both those triggers are great.
if you wanted something cheaper, you can send off your trigger group to Bill Springfield and he'll modify it to be a 3lb trigger pull for $50 i think.
+1 on JP fire group, thats what I have in my current 3gun match rifle, I have also used 2stage Rock Rivers in the past, they are really clean for a true drop in non-adjustable trigger group, you cant feel the 2 stages, it feels like a single stage, very crisp 4 lb trigger and around $120.00, if you want cadillac go for the JP and make sure to get the speed hammer as well, will cost you about $180 plus shipping
with all of these single stage triggers can you tell the difference between them. I mean is a 3 lb single stage trigger a 3lb single stage trigger or can you tell the difference between brands etc?