S.H.
I tryed not to go crazy with toys... but we had a birthday party for my son and suddenly we have MORE than enough. I actually stopped using the excersauser when he was around 7 months, so if you don't already have one, I wouldn't spend the money. Here are a couple that are really great that will last you several months.
We have a leap frog stand up table toy - but there are things to do underneith for sitting down too. Very educational and my son LOVES it. (I tried to find it online, but I must have been looking in the wrong place)
You probably want a good push-around toy and some of them have really fun stationary activities too.
We also got this fisherprice Laugh & Learn™ Learning Puppy. This is great and he takes it everywhere!
Vtech also has some good educational toys.