Why does Airport take so long to connect to the wireless LAN?

I have one of the Core 2 Duo MacBook Pros. I notice that whenever I wake up my Mac from sleeping, it takes a good 10 seconds for it to find and connect to the LAN. By contrast, Windows computers seem to find it and connect almost instantly.
Aside from having WEP encryption, there's nothing special about my LAN. It's a Linksys WRT54G, and I'm not hiding the SSID. Also, my home network is at the top of my list of preferred networks.
Once connected, I don't notice any problems. I haven't tried any specific tests of local throughput, but web browsing and other internet traffic with the Mac is no slower than the top speed of my broadband connection.
Also, I've talked with other Mac users, and they don't report wireless connections taking so long to be established.
So, what's going on here and how can I fix it?
Thanks!

My guess is that your connection will appear even faster, although I have no explanation for that, only my experience since I installed the same update.
Yes, your MBP firmware appears to be up to date, although the documentation is confusing. If your firmware wasn't updated at all, it would probably end with 00, instead of 01.
Software Updates needed for Macs will appear in Software Update's automatic offerings. I'm not sure what might have happened with the AirPort Extreme Update, although I suspect it might have only been called for if a Mac was using an Apple Base Station.
If you use Software Update to do your updates, you can check the Software Update panel of System Preferences, and on the "Installed Updates" pane, scroll down and check to see what was installed and when. I installed the same AirPort update the day after release - but then I was having an issue and was checking Software Update every day for that update to show up for my iMac Core Duo.
[I'm not sure that firmware updates are listed there at all, perhaps only software updates.]
To check for all downloadable updates on your own, click on "Downloads" in the Support menu bar at the top of this page. That's where firmware updates will appear if they are not included by Software Update. The last firmware updates have been appearing in Software Update. The first in 2006 didn't, but that created so much confusion among new users that I have a feeling that Apple has changed the procedure to automate it rather than have it be search and find:) Only time will tell.
Your mention of your printer - you could check to see if Samsung has a firmware update for your printer, but no, you can't use a mixed network, you need everything connected to be using same encryption method with same network name and same password.
I believe I understand the new AirPort Extreme "n" Base Station will support two separate simultaneous networks like that, one on the 5MHz band and second on the 2.4MHz band, but the older equipment can't do that.

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