Jeremiah Wheelwright

Questions: will SL work well? I have an HP Probook, with 4gb, i5, ATI Radeon with 1Gb video memory which does really well running SL (Firestorm Beta 2) on N wireless. I'd like to get a new computer for my wife to run SL on. I've been looking at the PCs with AMD Phenom II X4 processors, with 6GB or more, and some of the models just specify "HD2000 graphics". How well does Phoenix or Firestorm Beta 2 perform with the HD2000 graphics technology?