Eames Chair combo  

Because the end chairs are visually heavier and will have the thin metal legs, I would not use the chunkier wood legs on the visually lighter side chairs. You could use the wood legs on the end chairs and that would work; however, I think all chairs having the metal legs would be fine. With the six vs. eight issue, if it were me I’d use six; eight is going to look too cluttered.

My opinion: Use six side chairs, and don't put any at the ends.

Well, that has to do with how you like to dine; do you like having someone at the head and foot of the table ?  How often do you have a table of eight ?  If more than very seldom, get the two extra side chairs.  (Since when did "arm chairs" turn into "end chairs" ?  That's a new one for me -- though it kind of makes sense.)
All with chrome legs looks okay to me.  Would the walnut legs really match the table legs ?  If not, I'd say no.
SDR

thanks for your responses.  your comments made a lot of sense.  
As for the number of chairs... for some reason, the 2 side chairs looks like it needs a filler chair or one more chair.  Does it look cluttered?  Heres a picture with 3 side chairs.  What do you guys think?  
As for the legs, here's my thoughts:  2 sides with metal legs looks like the 2 chairs are floating.  Last night i went to DWR studio and looked at the dowel legs and they do look beefier.  The sales associate also agreed that the metal legs do give the illusion that the chairs are floating.  So if i go with the metal legs, i think it should be with 3 chairs on each side.  
If i choose the wood dowels, then 2 chairs on each side will work visually - the only issue i have on that now is that, based on your comments, i have to make the end chairs beefier, therefore changing the end chairs to wood dowels also.  Making all the chairs wood dowels (total of 6).
If i choose all metal legs, then total chairs would be 8.  Will i have more than 6 everytime?  not all the time but, right now there's 5 adults that would use it everytime.

 
When no one is using the table, the chairs should be placed on top so the night crew can clean the floor . . .?    Just kidding.
I'm a practical guy when it comes to design; if only six are eating, the other two chairs should be placed against the wall, so the diners are comfortable and not crowded -- and so it doesn't look like two more were expected but couldn't make it.  Utility trumps passive prettiness, every time; if you can make both work, that's successful design.
 
The chromed wire legs look maybe a bit insubstantial compared to the table, so I'd vote for all wood legs, if there's a choice.  Matching legs on all chairs is a no-brainer for me -- but I don't think its a deal breaker (if I haven't already used too many clichés) and different colored shells would "excuse" a change in legs from arm to side chairs, for me.
The uniformity of the chairs, all from the same series, and the simplicity of the table, means you can't go too far wrong no matter what you do.  Congratulations !

Thanks again SDR.  I do agree with your comments.  6 chairs all walnut wood legs - 4 white shell and 2 orange.
I also failed to mention that this area is still work in progress.  I still need to hang something on my teal colored wall.  Also, i am still looking for a walnut wood buffet to place against that teal wall.
with that in mind, which would leg do you think would work better?
 
Here's another view of my dining looking at the living room.
 
Thanks again,
Roger
 

If you mean wood color, I'd have them stained to match your table.  Barring that (for obvious and good reason), I can't decide which of the stock colors would be better in your room . . .

Oppss... sorry for the typo.  What i meant to say is, with a walnut wood buffet against the blue wall, which chair leg would work better?  Chrome or walnut ?

My opinion: Go with the Eiffel base.

Yup.  Conflicting similarities are less likely to please than pleasant contrasts.

I think you should go vintage instead