A great source for anything I leave out here is the FAQ section of the prereq thread.
For the most part these days , 4 years of undergrad, obtaining a degree is a good way to go before you apply to a pharmacy school but it i possible to get all the coursework done in 2 years or 3 years. $ years of undergrad or a BS degree is not required at most schools but more and more students are applying with BS degrees these days. The application process is very similar, you take a test called PCAT, but not all schools require it. Similar science prereqs and then you apply to most schools through a central application service called Pharmcas. The process of applying is very similar. Check out the FAQ thread for specifics on schools and
www.aacp.org for statistics and all that good stuff. Keep the questions coming if you are confused about anything and if want a quicker response search around.