apple... though expensive you'd be hard pressed to find a monitor as good as the ones apple produces and since they just released a newer version you should be able to pick up an older version (still amazing) for a bit cheaper.. try looking on ebay for one.. also seveal other companies make "apple-like" monitors which are basically the exact same thing as what apple produces just for a fraction of the cost cheeck out
www.macmall.com
for some good monitor choices in the 17in range..
my 2 cents