Think you'll like this one...
Beeman R-7. Light, VERY quiet, very accurate spring-piston air rifle. Real-world velocity about 635 fps. (Airgun velocities are pretty universally heavily inflated in advertising by shooting the lightest possible pellets, even if continued use would result in damage).
Excellent trigger, and requires minimal effort to cock and fire. Thus, it is fun for longer plinking sessions, where heavier, more powerful magnum springers aren't. Most folks who have one in their collection identify it as their most fun air rifle and the last they'd ever sell. Most effective in .177 caliber.
If funds permit, a Leupold 3-9X Adjustable Objective, Extended Focus Range (EFR) makes an ideal scope. Use high quality pellets for good accuracy, such as Beeman, RWS Meisterkugeln, H&N Match, etc -- no wally-world junk. Deadly on squirrels, rabbits and other small critters,
and loads of fun to shoot, encouraging practice and improving marksmanship.
A very good source of info is Straight Shooters Airguns website, which has decibel and real-world velocity ratings, etc. PCPs are nice, but many still prefer the simple, self-contained propulsion system of the spring-piston airguns. Firing report is a mechanical noise, not a "crack!" like pneumatic (pump-up) or PCP airguns; thus, they don't immediately make people think of the noise as "shots." Being mechanical, not pneumatic, suppressors don't work too well on spring-piston guns -- they mainly change the pitch or character of the report. Also, the seals on good springers are VERY durable -- no problem with quickly blown seals as on the lesser-quality pump-up pneumatics.
Hope this helps!
John