1. i'm not sure if it is a good idea to seperate logo and slogan - both should fit together in some way
2. i like the suggestions about clean shapes like well known brands - when seeing thoses shapes of puma, adidas and nike i thought about those bird-shapes preventing birds of crashing into windows. Then i thought a shape of a flying bird could be nice - birds... symbol for freedom, symbol for peace, symbol of elegance (see them flying), symbol of good navigation (coming back home), lightweight but full of power (light but powerfull cms), symbol for many dreams (flying men), intelligent animals... (stop thinking about those white/black dots at your car, i know some birds do make a lot of sh*t

I found this picture - maybe some of you talented gfx-cracks can make it suitable for a logo?
http://www.ilexikon.com/images/0/0f/Albaa.jpg
Just my thoughts...
tyndal