There is something cool about being able to store 256M of stuff in your watch. I don't have one, and I doubt I would use it much if I did. I am not that keen on watches. Being somewhat useless just makes it more cool though.
This is my current wireless router. Not because I love all things Linksys, because really I don't, but because this is a neat little 125 MHz MIPS box running Linux. And because of an oversight by Linksys in the Ping tool on their Admin page it is easily hacked.
You can do things like running Snort directly on it and have your gateway email you or notify you via irc/IM/pager if someone is trying to sniff your network. You can of course also run fancy netfilter/iptables rules or anything else you can typically do on a Linux box when you have it acting as your gateway.
See the SeattleWireless page on the wrt54g for all the details.
If you look around a bit, you can find this Netgear MR814 wireless gateway for next to nothing. $35 on Amazon right now, for example, but often even cheaper. I bought one a while ago but didn't use it because it was very buggy. However with the latest firmware it is actually pretty good now. But, also consider that 802.11g gateways are getting cheaper quickly, so I am not sure there is much point buying an 11b one anymore.
To upgrade it, make sure you clear your previous config completely by holding the little reset button on the back for 10-15 seconds, then install this firmware: MR814v1414RC3.zip
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