pugilato said:I too need (want) a new Mac, but I am going to build a house instead. The Mac itself is 2007 vintage MacBook, and I use it a lot to design projects using Sketchup. In that sense, the Mac is critical to my business, but not the way it is right now.
Paid for one of those disk cleaning applications, and it did well by me, but not completely. Purchased an SSD (solid-state drive) along with 4GB RAM chips for all of $200. I have not received it yet, but I have great expectations for my Mac's performance with these upgrades. Check it out at crucial.com.
Best increase in speed you will ever see from a perfect upgrade. Speaking as ex IT and typing this on an old aluminium unibody 2008 MacBook that I have no intention of upgrading.