basically, both are designed to network your computers

the hub connects your computer but the speed gets slower as the no. of computers increases, compared to switches, each port is independent...if you have a 4-port switch, then all of them are gonna get the same speed/bandwidth...so mas preferred and switch

what you need is a cable/dsl router, even those with wireless connection...there are a lot there in the market with linksys being given very favorable reviews so far, then there's d-link, netgear, IO gear, etc.
almost all models have built in switch in them...4 ports are the most common, they say you can use up to 250 computers on it, using other switches to expand your network.

yung pldt mydsl, alam ko they also market linksys routers...

plug and play lang usually yan kung cable connection ka, pero kung dsl, PPPoE (not sure)

wala atang router/hub combination