#2 - You can check if there are bids at namewinner.com or if there is a GoDaddy backorder yet because they only allow one backorder per name. SnapNames.com and Pool.com don't allow you to see if a name is backordered or not.
#3 - Every country code domain price is set by the owners of the country code. .TV (Tuvalu) set the price high, for whatever reason. The owners of .WS (Somoa) on the other hand chose a low price. Basic supply and demand I assume.