So I am almost done pimping my iMac.. from the stock 233 G3 / 32mb RAM/ 4 Gb hard drive to a 466 Mhz G4 / 256 Mb RAM / 75 Gb hard drive. However, it still has the stock 24x cd-rom. I see many of the slot-loading 4x DVD-ROM drives that have been pulled from other iMacs on eBay. Can i swap my stock cd for the slot-load DVD?