u should see what price range you have, then see what is about.
cockers are good, still and yes elecro one have been out for ages, and now they have been superseeded by the ego in planets eyes. but none the less, still a viable option for woods and suppair.
pm/dm good guns, but dont like cold weather too much
ego's are great rock solid, maybe a little harsher than paint than dm's.
impulse were good in there day but that day passed when the shocker became popular.
my personal opinion is go for an ego, there are some bargains about now, and will be better bargains around if planet release a new one for 07.
other than that an ion is a fairly decent starter marker that u can build up with time.