Using ICS in conjuction with a wireless router

[btbfromtx]

So here's the problem:
I'm at school that uses wireless certificates for WPA-PSK, so I can't hook up my Wii to wireless, which really sucks. I do have plenty of computers lying around near my Wii, however, and an extra wireless router that's not doing anything. So...

Here's my haphazard solution:
Use my second ethernet jack on my computer, which already has internet working just fine, in conjuction with ICS to send information to my wireless router. From there, the Wii will be able to connect to a simple, WEP key wireless 802.11g network and get online and do whatever it is Wii does online.

So, basically, the point of this thread is to get assistance on getting this set up. I don't have a lot of time to do trial and error with this so I'm just looking for a tried and true method to do this. I've included a picture here to illustrate, and remind, what is I'm trying to do with what materials I have.

http://img180.imageshack.us/img180/3382/speedguidewiiwirelessthbq8.th.jpg (http://img180.imageshack.us/my.php?image=speedguidewiiwirelessthbq8.jpg)

The router I'm attempting to use to make this happen, by the way, is a Linksys WRT54GC. Thanks for the help.

[TonyT]

What do you mean by Wii? Unfamilar w/ that wording.
And why cannot you use WPA-PSK? Most all adapters support it now, as does the wrt54g?
And why the need for ICS if have a router?

[btbfromtx]

TonyT: The Nintendo Wii, Nintendo's new next-generation gaming console. It does not have an RJ-45 jack and only supports WEP/WPA-TKIP, not WPA-PSK Enterprise.

I also don't want to put the router on the incoming line from the wall, I want it to run through my computer first, then have the second port utilized to provide WAN to the WRT54GC.

[lenwest]

If you already have a wireless router, it would be much simpler to connect it to the wall jack. Be sure you disable DHCP on your router as the school's router will be handing out IP addresses.
You could then connect your computer either by cat5 or wireless to your router.
The Wii could connect wirelessly to your router at the same time. ICS is often flaky.