I also got a power book 1400 back in January! It has a powerpc 603e 117, 12mb of ram and OS 8. I don't use it much but occasionally I use it for photoshop. It came with the original box and everything was mint.
The 117 isn't going to give good results in Photoshop as it lacks the cache memory of the faster 1400's. I'd be giving that G3 upgrade a good hard look if I was running Photoshop on that machine.