I think it really depends on if you like handheld or shoulder bags better. If you are not a huge handheld bag person, the speedy is going to be an adjustment for you. If you don't care and like both handheld and shoulder bags, I would start your collection with the damier ebene speedy 30! It's a gorgeous and fairly worry free bag! Good luck with your decision!
speedy for your first, this is the quintessential first LV bag for all women!
Hmmm I'm torn... I agree with Gracefully regarding the speedy as your first LV... It's like a rite of passage. However, I'm making the assumption that you're a mother based on your screen name and the NF would be much more practical and useful if you have small children. I love using mine as I tote my kids around.