Yes, er..ah..well, now..you raise a..hmm..er..whew! Now, let's start at the beginning, shall us?!
Firstly, it appears you're (what we fondly refer to as) a noobie. Welcome!
Now, quartz-v-auto is a debate in itself, and as such (I believe) has its own thread. If not we should start one and name it appropriately, "Fred"(?)
As for never having bought online before, well..what can I say? We were all virgins once. Even the girls at the 'Kit Kat Klub'! That's what these fora are for-a (see what I did there)? Do yer readin' and researchin', and then yer buyin', and postin' - NOT forgetting to post photo's of your purchases, or we get very upset..