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Um, no.</p>
<p>Mini displayport is your best choice. Get a mini displayport to VGA adapter. You could also get a HDMI -> VGA adapter, which might probably be cheaper but hard to find. Then again, to answer your very first question, no. All projectors should already been connected to some stationary desktop nearby. We’ve just been putting our stuff on flash drives and opening presentations on the desktop.
There’s nothing wrong with VGA, except that it’s a little old (by the way, the reason why your laptop doesn’t have VGA is because VGA is being replaced by displayport, which can also carry audio). HDMI is purely for consumer electronics, comes with a royalties, doesn’t do well with daisy-chained displays. Commercial, corporate, industrial are more suited with VGA/DisplayPort. DisplayPort can daisy chain several monitors with one connector, better supports projectors, and a bunch of other fancy stuff HDMI lacks. The two are great alone, but are used for different purposes. VGA and DisplayPort also have locking connectors, which you can guess might be very important for industry.
err, anyways… don’t buy anything. you won’t be hooking up your laptop to a projector.</p>