Best use for a jelly iMac?

I mean besides as a cat receptacle.

I’m being given one free for the hauling. CD-ROM slot, 2 USBs and Ethernet, no warez but for OS 9.1 and several apps that run on it.

Would it take much to convert the thing to OS X, soup up the RAM a bit and put my 2 hardrives and a wireless hub on it, so I can use my PB G4 laptop to tap the riches of gigabytes contained therein?

I am not a jargon-spouting alpha-geek, so please respond in terms a long-time user but first-time casecracker, with no networking experience beyond AirPort, can understand. TIA.

These machines will run up to OS X version 10.3 with no problems. They’re pretty slow these days, especially their graphics performance, but they make fine wireless internet kiosks (for the kitchen, for example).

I just upgraded an iMac to 10.3.9 for the mother of a friend. She uses it for Web, Skype, and word processing. There was some glitch using Safari, so we had to switch to a different browser. It seems to run fine and suit her purposes, but I wouldn’t go souping it up with hardware.