Ultra-Lightweight ROM?

Hey I've looked through dozens of roms on different forums and I still have yet to find one similar to what I'm looking for.

Here's what I'm kinda lookin for:

- Slick, clean interface
- Easy to navigate
- Mainly for Calls/Texting

Like I'm trying to find just an really light rom because I text a lot, I get a lot of picture messages, and I make calls. That's about it, I mean, I do use the internet and camera and few other tools every once in a while but mainly i'm looking for a rom that like can do these three things without any lag.

Anyone have any suggestions?