I'm sure you've looked on their website, but just in case,
Cessna Aircraft for Sale : Used Twin Piston Aircraft for Sale
You asked for good example 402/404, these guys turnover quite a few.
Also for your requirements and seeing you considered a shrike, this 680 has all specs you were looking for.
Commander 680 Twin Piston Aircraft for sale on AvBuyer.com
I currently fly the 680 with the io-720, and while I still think the Titan is one of the nicest twins I've flown, the 680 is up there next to it and handles very similarly. Quite stable. 400hp per side, tas 180, 2544kg bew, mtow 3863. Pm me for more details. Side note, it does burn more fuel - 160/hour average.
Cheers
RC