Hey i currently have a HD2400 pro PCI-E graphics card and am looking to upgrade it. Just looking for a reasonable price graphics card up to $100. The obvious upgrade would be the HD 3450 but just wondering which other options i have and which graphics card will fit my system. I also have a Intel E4500 dual core processor @2.20ghz, 1GB ram and am running windows xp professional. Thanks for ur help.