I sent my 15" MacBook Pro (late 2008) in for repair. It apparently had a lot wrong with it, because I had a voicemail message Friday telling me they wanted to replace it. I am calling them back today, but would like to see if I can upgrade to the 17" for an additional fee. It wasn't available when I bought mine in October. Do you think they will let me pay the difference for a bigger system? What's my best chance in getting this done? Just looking for advice from anyone who may have gone through this situation.