SAP ECC Installation

Hi All,

I bought a new laptop Dell.

Config is 320GB HDD

4 GB RAM

2.4 Ghz processor Core 2Due.

I want to install SAP ECC in this config .But I have an issue that , In my laptop already installed Vista if I format that Vista is their any performance Issue . Or Vista can support SAP ECC. Because I installed in Windows XP SAP 4.7.

Does Vista Support SAP ECC. Or do i need to format the OS and install Win 2003 Plz help me on this..