If you want to use test & D-bol for a 1st cycle...fine, but I would make soem changes. first of all, I wouldn't run a 16 week cycle your first time through. You could, but I think limiting it to 12 weeks is maybe a better idea. Two, save the D-bol for the "end" of your cycle, not the beginning. By saving it for the last 6 weeks, it will give you an opportunity you see how test effects you by itself, before adding anything on top of it. Besides, by using it at the end, when gains get a bit harder to make, you will continue to make great progress throughout the entire cycle intead of blowing up real quick in the first 6 weeks and then deflating when you discontinue it (you will lose only water after stopping the d-bol, but it will look like you lost muscle becaue some of that water is intramuscular). Basically, if you use it first, you will feel like the last 6 weeks were not nearly as productive as the first 6, so try and keep things more even by using it at the end. You will be happier that way, especially as a beginner.
Also, break your d-bol up into 3 different dages. Since each D-bol is dosed at 10 mg and you will be using 30 m daily, take it 3X daily...NOT twice. D-bol has a very short half-life (only a few hours), so you want to keep it active in your body for as long as possible each day. It will lead to better gains.
With 500 mg test, you will ant to use a anti-estrogen. Some people can handle 500 test without experiencing gyno, byt MANY can't...and you don't want to be stuck with no way to fix the problem should it arise. Therefore, I would use 10-15 mg of Aromasin daily during the first 6 weeks when you are using only test...and increase it to 20-25 mg daily when you add the D-bol onto it.
As for HCG, it is always beneficail to use for guys who cycle, as it accelertes recovery and maintains testicle size. 500 IU, 2x weekly (Mon/Fri) works well.
As for PCT, you will be significantly shut-down after a 12 week cycle using test and D-bol, so a 3 week cycle of Nolva at 20-40 mg per day is not optimal. Something like the following would be preferrable:
Weeks 1-12: HCG @ 500 IU, 2X weekly.
Weeks 13-16: Clomid @ 100/100/100/100
Weeks 13-17: Aromasin @ 10 mg/daily.
You could add Nolva onto that if you wanted to at 20-40 mg daily...or you could replace the Clomid wth Nolva only, but Clomid is more comprehensive. However, if you choose to use only Nolva as your only serm, then you will need to run it a minimum of for 4-5 weeks at 40 mg daily. When using Nolva alone, I prefer a 5-6 week cycle at 40 mg daily as Nolva, but 4 weeks is generally considered the minimum, especially after a 12 week cycle using two aromatizing compounds.