Help having pictures printed

[silver2000]

I am ready to print my pictures from my new digital camera for the first time and I have a few questions.

I want to manipulate a few pictures before I have them printed at a photo place. I am used to using TIFF format rather than jpeg, but I am not sure if that will be OK at the photo lab.

What I thought I would do is download the pics to my computer in TIFF format, manipulate them in Photoshop and change them to the exact standad size that I want them and save them in a CD to have them printed. Is that the way it works? Do they take CD or does it have to be a picture card? Also, is there a place that you guys recommend to have pics printed? I'd like to take them to Sav-on or Long Drugs for convenience but if it's worth it taking them somewhere else I'll do it.

Thanks for your help.