I currently own a 2.4ghz MacBook Pro (Late 2008) with 4GB of RAM and a 500GB 7200rpm drive. This particular MBP is limited to 6GB of recognized RAM. I run VMWare Fusion and while it works, but the overall MBP becomes sluggish when I have Fusion running various Window apps including SQL Server, Visual Studio, IIS and other web development tools. I also use Dreamweaver CS4 and Photoshop CS4 (average user) on the Mac side. Would it be cost effective to upgrade the MBP to 6GB of RAM and and an SSD for Fusion or should I sell the MBP and get a new MBP (2.53 I5) or 3.60GHz Intel Core i5 21.5" iMac ($1699) or the 2.93GHz Quad-Core Intel Core i7 27" iMac? I don't necessarily need the 27" monitor, but would buy if the Hyperthreading or TurboBoost make a significant different with Fusion. My overall goal is to improve Fusion performance. Any info is appreciated.