I recommend selling most of your extra items in a store. You shouldn't need to save more items than you can carry (unless maybe if you're soloing with just 1 character).
To reduce crashes, I highly recommend installing both SOA and the expansion, TOB -- and then install the correct TOB patch, version .26498. And then install the 3rd-party fix called "Baldurdash" (install the correct one depending if you have SOA or SOA+TOB).
You can find links to the patch, and Baldurdash, on my new web page:
http://www.boomspeed.com/colbruce/bg2.html