Canuck has a lot of great advice, but I wanted to add some clarity to how long you have to wait to wax or seal you paint. If it's factory paint(which I assume it is), go ahead and put any wax or sealant you want on it when you pick it up from the dealer. The OEM's paint process is completely different from that of a body shop(bake cycles are at a higher temp and more complete). By the time the dealer gets the car, the paint is fully cured.
If you had paint work done at body shop, ask them how many days they recommend before waxing or sealing. It will differ by paint manufacture but most will tell you 30+ days and that should suffice, unless temperatures are very cold. If it's very hot, say over 85 degrees and sunny, most paints will be cured within a week. Also, all OEM and aftermarket clear coats are solvent based, as are the primers and sealers. In the collision repair market, ONLY the base coat(or color coat, if you prefer) is "water-based", and only in parts of California and some states in the Northeast. That "water-based" base coat has a few coats of solvent base primer and or sealer underneath it and 2-3 coats of solvent based clear coat on top. The vast majority of cars painted in U.S. body shops are painted with all solvent based paints.
Also, I'll throw in my 2 cents on waxes/sealants. Go with a trusted name that actually has some R&D behind their products, not just marketing. I prefer 3M. They also own Meguiar's lock, stock, and barrel; although 3M dominates the professional(body shop) market and Meguiar's is more for the mass-market, do it yourselfer. 3M spent $1.4 billion on R&D as a company last year, which is probably more than the combined sales of all the other companies mentioned on these discussion boards. There is a reason for that, they simply make great products, whether it's masking tape, the reflective material on all the road signs, or the latest filling material that your dentist put in. IMO, 3M makes the best compounds, polishes, paint sealants, and fine grade abrasives for wet sanding. There 3000 grit Trizact DA sand paper is amazing, as is their Ultrafine polish and Performance Finish paint sealant.