Tamron 17-50 f2.8 (VC) for around $930 if you have a lover budget you can consider the Non VC version for arounf $620
:thumbsup: I second this.
TS's both cameras are DX bodies, there will be crop factor taken into consideration.
I find the 17mm wide enough for group shots, with additional zoom for the occasional close ups.
End of the day, alot depends on what TS wants to shoot. e.g: No point getting a 'slow' lens if you wanna shoot in low light or fast action stuffs.