If target shooting is your main purpose consider the Beeman R7. Light weight, VERY quiet, VERY accurate, very easy to cock and a bit cheaper than an R9 - possibly more accurate.
I love mine. Picked it up used off one of the auctions for under $200 and it didn't have a single scratch or ding. For quite a while I didn't think I wanted a scope. Then I got a 2.5x scope. Now I have a Swift Premium 4-12x and love it. I may drop back to a Beeman 2-7x though. Make sure to get a spring air rifle rated scope and seriously consider one with an adjustable objective to allow close or far shots. I had lots of fun with it using a Beeman Aperture but I had to buy an R9 front sight with replaceable inserts.
The R7 has a great reputation for accuracy and fun factor.
I shoot mine in the basement after the kids are in bed, or garage to get a more challenging distance.
Check out Straight Shooters.com for their write up.