Looking for code samples: Loop through selected seqs, resize and create seq from clip

Are there any code samples for handling three situations:

1) Looping through selected Sequences in the bin.  (Simple rename script example ala:   For (s in sequences) {if (s.selected == true) {s.name = s.name + "_suffix";}}

2) Changing the resolution of a sequence.

s = bin.sequences["bob_01"];

s.format.width = 1920;

s.format.height = 1080;

3) Creating a sequence from clip
c = bin.clips["bob_01.mov"];

seq = createSequenceFromClip(c);