<p>Costco one has only integrated Intel graphics, would suffice for most things but not great for any gaming or heavy CAD use, etc.</p>
<p>The Pavilion has ATI graphics on some of them, Intel on one, and NVidia on the other, but with varying amounts…128 isn’t very good, 512 is better but 1 gig is probably what you’d want.</p>
<p>ENVY has 1 GB graphics…definitely a lot better.</p>
<p>Processors are all pretty much the same…the Pavilion has an AMD, the other two are Intel…I prefer Intel but their specs are pretty close. The AMD only has 2MB L2 cache vs. 3 for both of the Intels…something to keep in mind but probably not huge for what you’re looking at.</p>
<p>I’d recommend a 15" because it’s a lot easier to carry around. But a 17" would probably be nice if you don’t plan on using an external monitor.</p>
<p>Things don’t change that much over the course of a few months.</p>
<p>And don’t buy any software like Office or anything without checking what your school offers, many offer it for free or at a very low cost.</p>