Hi We will buy an new server. SO will be RHEL 4 AS/ES Alternatives: 1) HP 585 4x AMD Opteron 2) HP 580 4x Xeon Any reference, idea, experience about these 2 alternatives ??? What about SGA limit ? I think I can make a huge SGA with AMD64 (no 3 GB limit), Do I have this limit in Xeon 64 bit ? Thanks.