Ed.. I usually just use normal clear tape (office tape 10mm out of a tape despenser).. I also use a generic brand spray can from my local homewares store.. The reason I do this, is the price. But also I find that household spray paints are faster drying.. Also I normally give everything a fair sand in order to rough the surface.. I sometimes get the odd scratch, or lift of paint, but that is to be expected.. Just take your time, and what ever you do, just slowly remove the tape, and not rip at it.. Patience is my worste enemy, so feel for ya.. I never use any (shiny) paints, or paints that have a glossy finish.. Mainly because I can gloss the subject at a later time, but usually if you have to go over something, the paint simply wont stick.. Stick to flat or mat colours where posible, then gloss later..
ps: I leave for work now, but when I get back, I will do up something and take a pic to give you an example..
Hope that helps, Chris