All IP will belong to you. If you require circuit design work, I will factor rights to the design into the price. At the end of the day I am not interested in retaining IP from your idea.
For example, if you simply send me schematics and a quantity request, I will design the PCB and have it manufactured at a good price. If you send me a list of requirements such as GPS, Xbee, SD card, DAC etc. I can design the circuit and PCB but will charge a slightly higher rate according to extra design time and IP handover.
Mowcius, I am happy to use iteadstudio.com if they are your preferred supplier. I have a good factory in China that I use, but I would have to send off for a quote to give an exact price.
As for example work, I would prefer not to post images in the forum as I work for a product development company and I do not own rights to the designs. I'll see if I can dig up some older pics from products that are on the market already, that should be fine. Otherwise just email me and I'll send a few over.
I have vast experience with multilayer SMD board design, including fine pitch packages, BGA, impedance matched/differential routing etc. As well as many years experience in analog/digital design for commercial products.
It is difficult to give a generic price for a basic shield, but I'm happy to offer competitive pricing if there are other groups offering standard pricing for shield design. I would usually take a look at the circuit complexity, then quote based on the number of hours required to design the board.