Yeah, even some low end PCI cards will do what you need, probably. Heck, I'm using a PCI 4MB S3 card from years ago in my daughters computer, as all it does is play internet games (for kids), and that kind of thing. Anything will do that. Check out
www.newegg.com as I think they've still actually got some inexpensive (read, under $30) cards in their store.