2001 is a huge influence on Star Wars. Maybe Lucas found it slower back in the day but i find that hard to believe--THX 1138 is clearly mimicing the same abstract style as Kubrick's film. On the new DVD Lucas says that 2001 was one of the most profound influences on his life because it made him realise he could make THX.

As for AOTC--thats a tough one. If here are any starship hanger shots then one might count those--for instance the ones on the Death Star, with the white glowing rim, are taken directly from 2001. I never knew the pan-am ship was in there though, I'm sure thats just the ILM guys having fun/getting bored.