I want to make a wireless network with two PC's and a printer. The guy in the computer shop recommended Linksys. My question is - is there some thing better?

In the future, you might want to post this in the GDlounge or a router forum. This is network programming after all.

If you want a regular home use router, linksys would be a good router for you.
I use a linksys WRT54G(wireless) and have 4 computers connected through ethernet and 3 connected using wireless. Linksys is a good choice for wireless setups.