I have a iMac 233 and a iMac 333 that I would like to repair so I can use them. I've owned the 333 since it first came out and I bought the 233 at a yard sale last year for $40. I have a list of questions if anyone can help me. The CD-Rom on the 333 is broken. I put a CD in and it makes a clicking sound then asks if I want to reformat the CD. If I replace the CD-Rom will that fix it? On the 233 the clock keeps returning to 1956...will replacing the battery fix that? And should I replace the battery on the 333 too? Where can I get Ram for my iMacs? the 333 has 256MB (Years ago I upgraded it to that) and the 233 has 64MB. Is upgrading to OS X possible? And if I did would that make it impossible to use my OS 8 software? Is it possible to install larger Hard Drives in the iMacs? And if anyone has any other suggestions for what I could do to upgrade them I would greatful.