A year ago or so I picked up a left handed CZ American 22 Rimfire. Beautiful, accurate rifle at a comparatively reasonable price. The problem for me was the typical European 2-stage trigger, topped off with a bit of creap.
Brownell's recently began offering replacement sears and trigger springs, and I opted to give them a try. My little CZ now brags a 2.5 lb trigger with zero take up and zero creap! Not an easy installation by any means, even with the detailed instructions provided by Brownell's, but worthwhile nonetheless.
My only regret is the discovery two days after I ordered from Brownell's that one of the aftermarket trigger companies (lost the reference, so can't pass it along) now offers a replacement trigger group for the rifle. It's at a similar price to the Brownell's parts (+/- $70), and would hopefully be a lot easier to install. If it also took care of the small overtravel remaining after the Brownell's installation, it would be a better solution all around. I'll track down the source if anyone is interested.
In the meantime, if you're looking for a sweet little 22 that handles and carries like a CF rifle, give a visit to the CZ American. With an improved trigger, it will certainly please. This should get your attention: With almost any ammo I can stuff in mine, it consistently groups less than half an inch at 50 yards!