I'll second Lloyd on the trigger work. There is no comparison between a spring kit and a good trigger job performed by a competent gunsmith. I would not reccomend having some "shade tree" gunsmith perform the work either. The few extra bucks you spend using a reputable smith is money well spent. Additionally, with an established professional, if they muck something up, they don't expect you to pay extra for a mistake they made. This won't be the case with an amatuer, and it won't be the case when a good smith has to fix a bad one's work.
Since it sounds like this is your first revolver? I would suggest, if you want to become proficient with it, that you have a little work done on the trigger before you buy a bunch more guns. I'm not telling you what to do with your money, just some advice from someone with a lot of revolvers. The old saying:"Beware the man with one rifle, because he probably knows how to use it" applies to handguns as well. If you get one revolver tuned to your liking, and practice with it, it will enhance your shooting skills much more than a safe full of different revolvers. The other benefit of this method is that you will know what it's REALLY going to cost you the next time you decide to get a new single action. When you decide to get the next one, you can budget for the modifications you'll want on it. After you determine if the gun is a "keeper" after some initial accuracy testing, you just send it to your smith and have the work done. There is no better bargain in the revolver business than a Ruger Blackhawk(Bisley), as far as single actions go, but the price tag at the gun shop is only part of the cost of owning a pistol you will enjoy and be proficient with.