Seph-
"This is something I am interested on seeing Ben's thoughts though - We all know the Xbox is going to have an incredible graphics chip, but what about bandwidth. I believe it is going to have about 6gbps of bandwidth."
Did you read Abrash's article a while back? Bandwith will certainly not be a major concern. The NV2X chip used in the X-Box uses several techniques to greatly reduce bandwith needs. HSR combined wish HOSR should greatly reduce the amount of bandwith needed when compared to tradtional rasterizers. Resolution issues are the only possible problem, the X-Box supports up to 1920x1080, they have built in full support for HDTV. At 1920x1080 bandwith could become a problem, but I doubt it will.
Another major bandwith saving feature of the X-Box is its' unique(compared to what we have now) FSAA. By reusing the same texel data there won't be any bandwith loss for FSAA, only fillrate which even the current GF2 boards have loads of to spare.
Seewhy
"I agree with one of the previous post, x-box will not be as good as PS2 because Microsoft haven't line up any Japanese developers to develope games for it, IMHO."
Which developers are you looking for? NAMCO, Konami and Capcom to name a few of the larger ones are already signed up, which houses are you after? MetalGearSolid2 is already a confirmed title, a major blow to Sony.
"I don't know how well X-Box will do in the US market where younger gamer dominates the console markets. But for an older gamer like me, X-box is not a good option."
I definately think that PS2 will dominate the inmature market, the teen age boys who think having vulgarity and Lara type figures in a game make it good. The ones that put standards of an M rating on a game to deem it worth while, Sony should have this market. They pander to them and do everything they can, including eliminating all traces of good gameplay, to get it.
I am married, and have four kids, and could care less if a game is aimed at "Mature" audiences or not, only if it is good. Do I enjoy Q3, Half-Life or UT, he!! yes, but because they are good games, not because they are aimed at the "Mature" audience(well, except HL, they are aimed at the inmature but they are still fun). I have yet to see a M game that can touch Zelda64 on any console, my father and father in law agrees with me though most of the kid market, 13-19, doesn't seem to think that way. The average age of console gamers is now 23, that means a good deal are old enough to have outgrown the adolescent perspective of what makes a game good.