Unlike the BEFSR11 I used to use, the WRT54G actually looks like a decent piece of equipment.

I was able to replace my old BEFSR11 and my Netgear FS605 with it, plus it adds wireless 802.11[bg], and has a nice complement of software features, due to the fact that it runs a linux 2.4.x kernel.

There's a variety of firmware upgrades for this unit

• Linksys itself has pretty good firmware available on its website. I compared the Sveasoft firmware, but it seemed like the most recent Linksys firmware had all the same features as the Sveasoft "extensions". This could mean that Linksys bought Sveasoft's firmware, I suppose.
• This hyperdrive firmware is supposed to boost your signal legally.