Best brakes for irregular use?

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I need to replace my disc brakes, have the stock Monaro ls2 ones, I use the car a couple of times per month.

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monaro55 said:

My standard brakes got really bad so looked at replacement same as you thought about AP but heard they do not like it if not in regular use plus the cost. Ended up buying slotted DBA discs and performance pads all round for less than £500 + vat from MF. Fitting on Tuesday ready for a week in Scotland on the following Monday.

Are they grooved or drilled at all? As I think it really adds to the look of the wheels.