wireless bridge 2 lans together and still have wireless AP too?

Newbie here when it comes to wireless networking stuff. Been searching through this
newsgroup and the Internet for an answer to my problem/question and so far no luck. I
have a LAN upstairs in the house with a wired router and DSL modem. I also have a
separate LAN in the basement and there is no physical way to connect the two thus I am
looking into a wireless solution. From what I can understand, the simplest solution would
be to get a couple of access points and configure them as bridges so both LANs appear
connected. However if I am going wireless I'd like to have the ability to have a PDA and
laptop connect wirelessly too. Any ideas on how to do this without spending a fortune or
converting over all PCs downstairs to wireless? The ideal solution would plug into a
router upstairs and plug into a hub downstairs. I am still waiting for a response to my
e-mail to D-Link as I was thinking on using a couple of 900+ or 2000AP. Can you have only
2 wireless units and bridge together 2 LANs and still let wireless devices connect too?

Please post reply here, e-mail not legit.

TIA.
C-A-D
the 3 finger MS solution