OK, Dharmabumz,
First consider the gun you are claiming as your own. You state you bought the traget model. This gun is one that Ruger has set forth as being a TARGET quality weapon, with tighter specs than the average gun, thus coming at a higher price. It should already have a match quality trigger and a bull barrel which will preclude the need for tinkering. IF you have indeed purchased the target model, I'm not too sure I would mess with it. You can find out what the trigger breaks at and you will be best served using match quality ammo with it (while more expensive, its tolerances will better match the breech).
All that being said, here are some things to consider:
1) The standard Ruger trigger is an OK trigger, but tends to have a heavy pull and resets just a bit funny compared to one that has been accurized. If your trigger breaks at more than 4-5 pounds, you might want to consider a trigger job. You can have a gunsmith work on the parts you have, but I believe you will find it extremely satisfying to replace the parts yourself and save LOTS of money. Power Custom, Tactical Innovations and Volquartsen are names I have seen bandied about as being the best. For my two 10/22's, I first purchased the drop-in trigger group (TG2000 if memory serves) from Volquartsen and used that in the one I placed in the pictures on this site (#7--it's a bit stretched, but you get the picture). For the other, an International model, I obtained the Volquartsen parts and installed them in the original group with similar results. The effect of this particular job is to make firing the weapon more consistent. This will assist in accuracy, but is not the only thing to be considered. IMHO, it should be the first.
Next, since you already have a targer barrel (a .920 bull barrel, heavier and more exacting, match grade tolerances), your only reason to change this would be esthetics. There are multiple barrels available from multiple sources for your consideration which can make the gun lighter (a nice feature if you carry it for very long) and prettier (noce again, this part has little to do with accuracy.
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The third thing to consider, if you are seeking increased accuracy, is to have the face of the bolt resurfaced by an experienced 'smith. This is not a job for the inexperienced since it directly affects the firing of the weapon!!! While having that done, you can also have the bolt jeweled, install titanium firing pin and extractor and anything else you might want to consider for the bolt.
Fourth, get and use a good scope. We are talking distances that the human eye is not able to visualize small targets, specifically 100 yards and beyond. If you are not shooting those distances, all this work is moot.
Replacement of the stock is a matter of taste. There are so many to consider that I would not even attempt to know what you might like, so shop around and see if you even want to change what you already have.
How much money will all this take, you might ask,? Once again, it depends on the parts purchased. If you are SERIOULY asking this, consider that this is a HOBBY for most of us and spending the money is part of the joy. This is as much a part of personal satisfaction as it is making the better weapon.
Lots for you to think about in your search. Enjoy the journey.
by markej4801 » Wed May 18, 2011 6:11 am 
Hold it! That's not cheap!!! The results, though, are amazing. There are others as well, so shop around and read the reviews.