In this forum (AAS Cycle and Discussion) one of our Super Mods - Get Some wrote a great "how to" for first timers... Check it out.
http://www.theironden.com/aas-cycle-discussion/414-first-cycle-all-you-need-know.html
I read that post at least 14 times before I did anything else. Then I asked questions about what this meant and that meant. So make sure you understand it all too.
In it, he lays out how and when to use HCG, what you need on hand for gyno control, and how much clomid/nolva for PCT.
Otherwise, my thoughts are:
250 mg test e 2x per week (hope thats what you meant by 500 twice a week).
Swap out the SD for dbol. IMO the sides for SD are harsher than need be. You'll make awesome gains in the first 4 weeks on dbol at relatively low doses. 30mg per day is good.
Before you start - be damn sure you have everything you need. No 11th hour nonsense.
Good Luck!