We have most of the Orchard range, the games are fun as well as being educational.
We also love Kerplunk and frustration. Hungry hippos is fun but very loud and for some reason never seems to go back in the box right.
I used to love Guess Who so will get that one for DS when hes a bit older.
Have a look on Amazon, they do a great selection and you can see reviews from people on most products.