Hi All.....I just dropped and broke my 1st Blackberry (bought a refurb w/ contract w/ATT 6 months ago) it's an old 7100 series - worked great - need to replace it immediately, today, in your opinion, is it ok to buy one on EBAY? Also I need to know what model to buy - it needs to be durable, good screen (I surf a lot on it) and be CHEAP! I need to have it shipped today so I would so appreciate it if someone can email me right away at [email protected] with your recommedation for the model I need - care about function - do not care about style or color! PLEASE HELP!