Wildlife on the peninsula

Hello

I was considering going on an 18 day Antartica, the Falkland Islands & South Georgia tour with Peregrine but have found the total cost of the trip from Australia is out of my budget. Peregrine have suggested a 10 night Antarctic Explorer voyage to the peninsula leaving on December 8th, 2007 as an alternative. I am keen to see as much wildlife as possible and was wondering if anyone would care to comment on the time of season, length of trip and destination of just the peninsula in regards to this. Also I have never done any cruising and have heard that sea sickness is a real problem. The peregrine ship is the voyager and is listed to take 110 passengers. Has anyone every travelled with this company?

Thanks
Louise