[Radu]

   Do you know any other transitional metals, apart from vanadium, which have salts that are light blue and grass-green in aqueous solution? 

[billnotgatez]

I did the following GOOGLE
metal salts with color in solutions

Many of the links did not answer you question
But here are a few that might

Transitional Metal Ions in Aqueous Solutions
http://chemed.chem.wisc.edu/chempaths/GenChem-Textbook/Transition-Metal-Ions-in-Aqueous-Solutions-1055.html

Transition metal ions and colour - Creative Chemistry
http://www.creative-chemistry.org.uk/alevel/module5/documents/N-ch5-11.pdf

Color of chemicals
http://en.wikipedia.org/wiki/Color_of_chemicals

[Arkcon]

Thank you for finding these billnotgatez:.  I've often said that finding the color of inorganic salts is difficult, it just isn't worth many people's time to host such images.  Nice to see Wikipedia has begin to get into the act.

[Radu]

Thank you very much, they're really useful!