Best cellphone model for a heavy texter

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I love those phones which flips or slides. But recently i have become a heavy texter. Last month i sent out 800 text msgs, received 1 hour call and dialled about 30 mins worth of calls. so i'm more of a texter. i guess fancy phones w/c slides and flips is not really practical for me. Can you suggest a phone which also has a good quality camera, like SE K800i, but not too bulky. i like those which are slim and small. thanks so much.