Client disconnects from AP (Linksys)

Well I am getting a bit sick of Linksys gear not going throught one
gib board wall and not working in the next room.

I have had two slightly different scenarios lately:

1. Client regularly disconnects and eventually reconnects. When it is
connected has full signal (interference?)
2. Client disconnects and needs to have key entered again and again
(WPA) before it will reconnect.

I am not trying to set any distance records here.....

Using WAG200G's with WMP54G's and the USB version too.

Can anyone reccomend better gear that I can start to use without
taking too much of a price hit? Linksys just seems to be getting so
darn flakey.

Is there any gear that would be good for logging signal strength over
time so I can see when signal dies and maybe get a few more clues as
to why?

Cheers in advance

-Al