Starfox64x
however if we DO use our old computer and move it upstairs, we'll either need an adapter of some kind to make it wifi ready, Or rent another Modem from our ISP (I'm sure they would charge us for it somehow... but i'm not entirely sure...) That may be something i'll have to research more...
Getting another modem won't solve your problem (both because you'd have to pay for a second line of service or configure the router as, essentially, a wireless bridge, which it probably won't support anyway).
Either get a wireless adapter or a wireless
bridge. With a wireless bridge, you don't have to mess with drivers or anything. Just plug it in, configure it, and hook up an ethernet cable.
Starfox64x
But i had another thought: they only use the computer to check their mail and pay bills, which a netbook or cheap laptop could do easily... i check bestbuy for that as well, and they're about $200 for the least expensive one... and it would connect to our WiFi and all would be well...
This is also fine.
Starfox64x
So, what do you think? is there an option that sounds better than the others? Is there an option that i'm not thinking of? Let me know what you think...
You could make them use it downstairs, or you could run ethernet through the wall/floor straight to the room where it would be used.