Open Question: Buying tall tents or tipis online?

I'm going to soul survivor and want to get a tent for me and my friend to share. I'd like one that's quite or fairly high but looking around has been really hard to find one. I was thinking a tipi or something similar but any suggestions are welcome. I wouldn't mind a three or four berth one as some extra room would be handy! Thanks =DD

Source:
http://answers.yahoo.com/question/index?qid=20110328033231AAscjF4

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