Great choice of colour

Personally, I use Meguar's products, but others such as Autoglym, Zymol and Swissol are quality products. Depends on what you want and how fastidious you are. Don't just settle for a polish, get a clay bar, paint cleaner, polish and rich wax to protect the paintwork and keep the car looking great.
http://www.meguiars.co.uk/Washing and drying are critical to avoiding scratches and swirl marks, especially for dark metallic colours - use the 2 bucket method, some very good tips here:
http://autopia.org/Got any pics of the windscreen fault - mine appears to be delaminating at upper/lower offside corners - appears as a small grey line which is getting bigger

Enjoy.
Cass