My oldest son (now 4) loves his computer - playing in Word, Paint, Chess and software like Reader Rabbit, JumpStart and I showed him Timez Attack a few days ago and currently that is ALL he wants to do when on the PC.
He got a Leapster Explorer for his birthday and is currently playing the Dora Game over and over and over again (as is my youngest son (2 years)
He also loves to collect stuff - esp books in a series and dvd's in a series.
Stationery and art supplies are also a firm favourite - including tape, stickers and different types of pens and papers. Painting in different ways and types of paint are also great for keeping them occupied for ages, as is play doh - as long as they have tons of different cutters, moulds and so forth to create actual things with.
They both love to play outside - in the sand, in the water, on his jungle gym - as long as his brother plays with him (or an adult) obeying his every command in his fantasy worlds.
Board games and card games are a firm favourite too.
Neither of them enjoy playing with regular toys - but they enjoy anything that they can manipulate into their own made up games - marbles now get combined with a little plastic crane that DS(2) got for his birthday to see how the marbles roll along the toy.
Read along books with CD's are great for them to look at together too.
