GT6 tire size recommendations?

Hi guys,

I need some new tires for my '72 GT6.  I've seen triumphspitfire.com's 
tire size survey, which is great to see which ones will physically fit, 
but it's hard to tell how they look.

Can anyone recommend a tire size for the GT6 which looks stock, yet 
*just a little* less wimpy than the 155s that come on the car? If you 
could send me photos off-list, too, I'd especially appreciate it!

Thanks!
Steve
'72 GT6
'71 TR6