plugs and wires

i bought some motorcraft plugs, they are not the platinum., but im guessing they are the best for my car. im not sure what wires i should go with. and how much should i expect to spend? i also had my alternator tested and was told its bad. should i definately go with the pi one or could i go with the lower grade one? being that i dont run light and sirens. and a portable radio.. lol

I would use the Motorcraft WR-5934 wires, or NAPA Belden wires. $60-100 depending on area/dealer. On the alternator, I recommend the higher output PI alternator. It lasts longer and doesn't cost that much more.