Hey I want a Mac Mini and planning on getting the latest mini with 2.26 GHz. I will upgrade it to 4GB of RAM but was wondering how much is it worth it to upgrade the hard drive from a 5400 rpm to a 7200 rpm internal drive? How much added speed and performance will I see? I don't use any intense apps just the usual Apple ones and Photoshop and Microsoft Office. I'm looking for faster boot speeds and snapy performance but I'm wondering if its worth it given the time and price. Also will my fan turn on that more will the added heat? Any personal experiences or opinions are appreciated. Thanks.