If you want to be even more different, look into chase lights. They are similar to sequential except with sequential all the lights turn off at once, while the chase lights turn off in the order they were turned on.
Meter4it makes the chase kit (I haven't seen anyone else make it). They have a plug in and a splice kit. We did the splice kit years ago. Its been on for well over 100k miles so the meter4it controller is still working great. We did think we had an issue about 10k miles ago and meter4it helped me diagnose it. Turns out the factory plug has been somewhat crushed from putting heaving (read car, parts) into the trunk.
meter4it.com is where we got our from (no idea if you can get it from anywhere else).
Oh yea, the meter4it kit will switch from factory, to sequential to chase so you can change what its doing by moving a jumper.
~Mark