Basically, I'm about to go on a long trip and want to know if its worth upgrading from this http://reviews.cnet.com/digital-cameras/powershot-s410-digital-camera/4505-6501_7-30732124.html, which I currently own to this http://reviews.cnet.com/digital-cameras/panasonic-lumix-dmc-fs15/4505-6501_7-33571402.html, which I have identified as the best value replacement (100 quid on ebay).

Given that I am very poor and looking at the relative specs, is it worth the investment? Will the pictures be significantly better?

This question is too specific to be googlable so no abuse in that vein pleeease.

Thank you.