Most Black Friday deals will be aimed at mainstream consumers, and SolidWorks is not an application that those computers would be expected to run.
I suggest looking at the Dell M6600 laptops on Ebay. There are many of these machines that are coming off of two and three year lease agreements. For under $1,000.00 you'll get a laptop that was designed to run SolidWorks. It is a great deal when the cost of a new (very similar) workstation is $3,000 - $4,000.
Also Dell Business Outlet-refurbished-full warrantee. Search for coupon codes.