iDood is dead on w/ his comments on the 07 tigers (they are more street than dirt) mine in an 05 and in my opinion alot like the 99 d1 (last of the best).
i've spent alot of years on motorcycles, and when i got back into it just recently, i was very specific w/ what i wanted.
i wanted the upright seating style of the dual sport bikes (very comfy on long hauls)
i wanted something i could use 80% on highway and 20% off
here in utah we have miles and miles of nicely graded roads, so my 20% off means 100% graded roads.
the GS is 500lbs dry and about 32" in the seat height
tiger is 400lbs and 30" in height.
something to keep in mind, is that these are road bikes that do well off highway. but are far from being "dirt" bikes.
i would never take my Tiger places i took my YZ...lol
check out ADVrider.com, it's the dweb of adventure riding. and again, mostly GS stuff there ...lol
another thing about the that drew me away from the 650 was the power. on the highway, i feel safer w/ a 1000cc bike (955 in my case
) it's nice to always have power at the ready.
oh and it's hot here in SLC and the miners have not been found.
they are now drilling a 4th hole... fingers crossed!