|Those specs are actually quite good for a 7 year old system. If you don't plan on doing much more than what you do right now, then there's no reason to upgrade. 2Min boot time is quite respectable too, some systems even newer than that can take longer especially with the OEM garbage.|
On my laptop I tend to get lag spikes similar to what you're takling about when my Mcafee runs a 'scheduled' (as in it's own schedule, not mine) scan and hogs 98% of my hard drive access time. You'd be surprised how much is dependent on the the hard drive. When you get lag spikes, does the HDD activity LED on the outside of the computer light up? Do you head a sound like a coffee percolator inside the computer? That means hard drive activity. And really heavy activity can cut framerates more than half if not 3/4 or total freezeups.
Since you have said that you've had the computer for 7 years, and that you haven't done any heavy mantinence on it, I'd recommend atleast running a Windows defrag if nothing else: http://windows.microsoft.com/en-us/...
It's also possible that your internet is rather slow, causing the lag but this really just sounds like a hardware issue what with the cursor freezing up and all that.
Not everyone can decipher Klingon script...
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