On the street the standard brakes were more than enough and I never ran out but as soon as I started doing track work it was cooking the A1 RM's. Especially at Winton.
If you don't intend on doing track days then your factory brakes will be fine. Just stick some high temp fluid in and a pad of your choice. On the street, any half decent pad should do the trick as you'll never get them hot enough to fade.
These are what I now run for reference but are unnecessary for street use.
http://www.ebay.com.au/itm/AP-Racing-6-Pot-Brake-Kit-NISSAN-SKYLINE-BNR34-GTR-Front-343mm-BLACK-/150754827505?pt=AU_Car_Parts_Accessories&hash=item2319b01cf1