I have to recomend you get a dream x Bravo it is the ULTIMATE xbox it has a 128mb RAM upgrade and the processor has more cache. Your games will load quicker and although its not as powerfull as a dream x 1480 it does not glich and IS compatible with xbox live. http://www.upgrade123.com/catalog/product_info.php?products_id=95 I would pay a little extra to get a bigger HDD put in it as well
Its worth every penny, it loads games twice as fast as a normal xbox. It is the best modded xbox you can buy, trust me its worth it. But they do a nice modded one here http://www.upgrade123.com/catalog/product_info.php?products_id=76 It does not have the cool stuff that makes to double load speed but it does have the dolby and fibre optic ports.
Thanks for all the info Im thinking about getting the one for $400 I would like to know what are the advanges it has over the cheaper ones that would make it worth that extra $200