I'm about to purchase a new laptop and found two on sale yesterday that seem pretty good and are about the same price. I don't have the exact model numbers with me right now, but one is an Asus G60JX with i5-430m cpu, 4gb ram, 500gb 7200rpm hdd, and nvidia gtx360m video card. The other is a Dell with i7-720gm, 4gb ram, either 320gb or 500gb (forgot which) 7200rpm hdd, and ati radeon 5470. Though this deals with these two specific computers, i'm also generally curious whether you'd choose a high-end processor and mid-level video card, or a mid-level processor and a high-end video card.
In case anyone needs to know, i use neuromixer/avmixer and resolume for vjing.