[SF-Z4_3.0si]

Just wanted to say hello. I bought my '06 Z4 3.0si (w/ 90K miles) in August 2012. I had BMW in Pleasanton do an inspection prior to purchase. The only thing they deemed "poor" with the car were the front bushings were worn.
I had the bushings done in the beginning of September. I went with the Meyle bushings; I bought the entire kit from eBay, and had the FCAs, tie rods, etc all done at the same time.
From my understanding of this car through the forums, noises, rattles, etc, are not uncommon.
I have three I would love to solve.
1. Sometimes when I start the car up I have a whining sound. It goes away after about 60 sec on its own, or when the car is put in gear and driven off. It won't come back again until the car is started again.
2. When the top is up is only when I notice the second noise. From 0 mph to approx 30 mph, when accelerating, I have what I can best refer to as a "vacuum" noise. if definitely sounds like some "air noise/wristling" coming from the engine when accelerating.
3. Lastly, a squeak. It seems to come from the rear of the car when in motion, and over bumps. It's very soft, and you can drown it out by the radio, but I would love to solve it.

I thank you in advance for any assistance.