MacOS Logo?

Anyone know of a usable Logo for MacOS X?
I used to use ucblogo 5.5 from the command line, but that was compiled for PowerPC, so it won't run on a modern machine.
I tried ucblogo 6.0, but the lag is unbearable (after pressing a key I have to wait a second before it appears on the screen).
Does anyone have any recommendations?

I have been pretty happy with ACSLogo:

http://www.alancsmith.co.uk/logo/

I use it under 10.6.8 but have tested it under 10.7.x as well.

TurtleArt is limited but quite fun and beautiful:

http://turtleart.org

I just opened UCBLogo 6 and did repeat 4 [fd 10 rt 90], pressed Return, and it was pretty instantaneous.