My trustworthy G4 is overflowing with valuable information and I'd like to consider replacing its hard drive or adding a new one. I don't know much about this and looking for recommendations for how big and fast a drive (currently 120 Gigs) I can use. My G4 has the dual mirrored front with two optical drives. The profiler tells me the following: Model Name: Power Mac G4 Model Identifier: PowerMac3,6 Processor Name: PowerPC G4 (3.2) Processor Speed: 1.25 GHz Number Of CPUs: 2 L2 Cache (per CPU): 256 KB L3 Cache (per CPU): 1 MB Memory: 1 GB Bus Speed: 167 MHz Boot ROM Version: 4.6.0f1 Serial Number (system): XB3100BBNP1 Hardware UUID: 00000000-0000-1000-8000-000393D46A2A The drive is listed under the ATA bus in the profiler with the following information: ST3120024A: Capacity: 111.79 GB Model: ST3120024A So my question is can I at least double my capacity or am I limited due to my configuration? If I can upgrade, what type of system should I buy to be sure it works? How would I put my operating system on the new drive?