| 20" 2GHz 2.0GHz Intel Core 2 Duo 1GB memory 250GB hard drive 8x double-layer SuperDrive ATI Radeon HD 2400 XT with 128MB memory $1199 | 20" 2.4GHz 2.4GHz Intel Core 2 Duo 1GB memory 320GB hard drive 8x double-layer SuperDrive ATI Radeon HD 2600 PRO with 256MB memory $1499 | 24" 2.4GHz 2.4GHz Intel Core 2 Duo 1GB memory 320GB hard drive 8x double-layer SuperDrive ATI Radeon HD 2600 PRO with 256MB memory $1799 | 24" 2.8GHz 2.8GHz Intel Core 2 Extreme 2GB memory 500GB hard drive 8x double-layer SuperDrive ATI Radeon HD 2600 PRO with 256MB memory $2299 |