Higher reps in the exercises like squats and deadlifts will bring big gains, but you have to go very hard, like use a weight you would normally get only 15 reps with and get 5 (as I call them) death reps. It will be more of a cardio workout then you'll care to do. Also, do some grip work, like farmers' walks and bearhug walks and stuff like that.
It's funny that you bring up the old rep range argument. 8-12 reps is an EXCELLENT range if size is your main goal. 6-8 is probably better, but 8-12 is great for smaller movements, and 6-8 is better for compound movements (except squats, IMO).
But interestingly, that Rea guy says that high reps DO INFACT increase fat loss, not only because they burn more calories (compare a 1-rep max workout to a high-rep workout, even if not taken to failure). I suppose the lactic acid buildup increases IGF-1 production in the skeletal muscle...cool.
Seriously, if you can only train twice per week (this is fine) steroids will probably NOT help you very much. The advantage to steroids is that they allow you to train to a point which would normally be overtraining, shifting the balance from what would normally be catabolic (overtraining-induced catabolism) to anabolic. If you are only working out twice per week, you are not taking advantage of this new environment. I'm certain you would get better results than w/o steroids, but you would be wasting a lot of their potential (unless you train like Mariusz Pudzianowski).
I believe in order to use steroids, you should have a good 3 years of HARDCORE natural bodybuilding, with a perfect diet and training (be honest!). 3 years isn't set in stone, it should be where you reach a plateau and can no longer make reasonable gains from all the creatine, whey, dextrose, liver, and red meat in the world. This is of course just my opinion though. I have witnessed (and experienced) incredible gains from creatine alone (along with good diet, high calories, proper supplementation, etc.) but no steroids or prohormones. I'm talking 30 pounds in a year of pure lean mass (and definite fat loss as well!!), 2" on the arms, 4" on the chest, and nice strength gains. Personally, my favorite supplements are:
dessicated liver
whey
dextrose
ribose
sodium phosphate
creatine monohydrate
multi vitamin (high B)
vitamin C
glutamine
flax oil
Eat plenty of red meat. This can't be stressed enough! Eat about 2g of protein/lb bodyweight, about 110g fat, and atleast an equal amount of carbs as protein, preferably twice as much.
My best results came from training legs once per week (very hard)
calfs, abs, biceps, triceps and grip three times per week
chest and back twice per week
total workout of about 60-90 minutes and 4 times weekly (NO "cardio" unless cutting!! but the farmer's walk will still kick your ass!!!)
Get that huge whey, creatine, dextrose, ribose, etc shake in soon after your workout (within 30 minutes).
I dunno, this was probably too much info, but if you want any more, I'd happily give it to you.