Just tested the game on my old laptop.
Toshiba A110-233
512mb memory
Intel GM956 integrated graphics - max memory 128mb
Windows XP SP3
Movement around the areas I've explored is quite smooth, except in the Cantina where movement becomes nigh impossible :- very stuttery/takes ages to select npc and talk.
Fighting is stuttery, not as bad as Cantina area though.
Still have a lot of areas to explore and will report any unpleasant effects.
Going to add another 2gb of memory next week and check the results. I'm hoping that the extra memory will expand the graphics memory but it's probably fixed in Bios settings that Toshiba set