Forget the VGA.  If you want a used 15" monitor with built in speakers I have one here you can have for $20 + Shipping ($30 Mainfreight, so $50 total).  Then you could at least use 800x600 which might be acceptable.  640x480 is ridiculously small.

Regards

-- Oliver Jones » Director » oliver.jones@deeperdesign.com » +64 (21) 41 2238 Deeper Design Limited » +64 (7) 377 3328 » www.deeperdesign.com