I'm thinking about replacing my laptop memory (Dell Inspiron 9100).Right now I have two 256MB modules, and I can replace that with two 1GB modules, for about $210. So what do I do with the old ones? Crucial.com suggests replaing them in pairs, and $200 is not bad for an upgrade of that size. Can you sell old memory? Crucial lists the ones I have in my computer now as going for $29.99 each. I don't feel like creating an ebay account just to go make $40. Is there an easier way? Hmm... maybe a trade?