few questions for you.....
what do you plan to do with it?
hunt or bench?
hunt: http://shootersdiscount.com/cart/index.php?act=viewProd&productId=762
bench: http://shootersdiscount.com/cart/index.php?act=viewProd&productId=763
top one is really easy to install and is a good trigger for the money.....better than factory trigger in adjustability and pull weight
bottom one is a little more involved,but is very light and crisp
there are more out there,jewel,timney and so on...but these are the ones i use and work for me