Pads must match discs so vented pads will not work with solid discs, and vice versa. Also you can't just swap the discs without changing the calipers. So if you have solid discs, you need the pads to match.
Front pads are relatively simple and I've got a "how-to" on my website if you are interested. http://members.lycos.co.uk/gazza82/
You will need a 7mm allen/hex key and a couple of spanners to get the pads out but the pistons just push back. The rears are another story!
On the caliper paint, I have the same dilemma: red car so what colour? Blue? Yellow? Gold? Black? Dirty as now??
HIS: 1998 156 2.0 TSpark with Sport Pack 2, sunroof and hi-level spoiler in Alfa Rosso. V6 intake mod, clear side repeaters and Zeatek undertray.
HERS: 2009 MiTo 1.4 95bhp Turismo arrived 21st November in Techno Grey with colour-coded headlight surrounds.