I'm thinking about a new laptop with the following hardware: i3 2nd generation processor. 4GB RAM. Are there specific incompatible video or other features to lookout for and avoid in the hardware? Are certain brands more problematic? I have an affinity for HP.

Also, I am looking through the Incompatible and Compatibility pinned treads which are VERY helpful, but I was wondering if anyone would like to offer me specific advice before I make a purchase. I want to dual boot it with Ubuntu 12.04