Wifi adaptor recommendations

I'm moving at the end of the month.  The city is buying out the property=20
and paying for movers, etc.  They're actually supposed to give a 90-day=20
notice, but they want to move faster than that, so they're actually=20
paying to put me up in a nice short-stay hotel (3-star, Homewood Suites=20
by Hilton) for that three months.  There's more to the package as well,=20
but that's the bit in focus ATM.

That's nice as it's three months I won't have to pay rent and=20
utilities... and it's definitely an upgrade from what I'm used to, as=20
well, all paid.

But they have wifi, and my internet here is all wired.  So I need to=20
arrange something to adapt to wireless.

One option, I actually do have an old wrt54gl router, flashed to openwrt,=
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tho I've always kept the wifi off.  It's the old a/b/g and limited to 54=20
Mbit/sec, but I could I suppose enable wireless, set it to client/adaptor=
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mode (I guess that's what it's called), and keep the LAN side (primarily=20
one computer, but I have my VoIP phone adaptor plugged into it too) setup=
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exactly as it is.

I don't really want to buy a router at this point, as if/when I upgrade,=20
I want to build my own amd64-based router/system (as posted in a thread=20
here a year or so ago, but I've not done it yet), and it's way to short=20
notice to consider building that thing for the hotel.  Tho I suppose I=20
could buy a cheap one instead of an adapter for the computer /and/=20
possibly a new phone adaptor.

Alternatively, I could buy a proper modern wifi adaptor for the computer=20
and upgrade to a different VoIP adaptor that has wifi as well... or just=20
use the hotel phone (I don't have a cell) and stay local-only while I'm=20
there.

But, unless it's effectively an Ethernet connected router, so no drivers,=
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I'll need to pick it up and install drivers and a wifi config before I=20
actually move, so I don't get stuck needing a connection to get the=20
drivers to use /for/ the connection.

I could do either USB or PCIE card, tho I believe a PCIE connection's=20
more robust, but OTOH, a USB connected device is more flexible in some=20
ways.

So recommendations?

And reminder, a good howto on configuring the wrt54gl with openwrt for=20
client mode, or whatever it's called (I haven't yet looked, it might=20
actually be well covered on the openwrt site), would be useful and keep=20
that option open as well.

--=20
Duncan - List replies preferred.   No HTML msgs.
"Every nonfree program has a lord, a master --
and if you use the program, he is your master."  Richard Stallman