I've said time and time again how Swype is by far my most favourite keyboard out there for Android. It's so quick and easy to use, I can bang out a text in seconds. Also one thing I've noticed after using it extensively for about a year now, is that you learn the swipes needed to type out your desired word - because of this I can type out many words without even looking at my screen.
DJ Darkknight, a reader of UltraLinx and a guy I've worked with in the past (this was way back in the day when I was modding apps), has come up with a bunch of themes for the Swype keyboard and compatibility for the Galaxy Nexus.
There are many APK's to choose from so I suggest you head over to his site to download what you're looking for - Swype Themes & Swype for Galaxy Nexus