http://www.nandyala.org/mahanandi/ is an Indian blog site with some excellent recipes - highly recommend this one for a trawl for some ideas.
Also have a look through the recipes at :
http://www.astray.com/recipes/?search=vegetabl e+curry Should keep you happy.
My fave - lightly fry some sliced onion with garlic, add a decent curry paste like Mae Ploy brands Penang style or similar, stir in coconut milk allow to reduce, add more coconut milk (not so its a soup but enough to cover the veg) and add diced potato. Cook gently for 5 mins, add sliced green beans, some cashew nuts, chick peas, spinach - frozen or fresh - and a little veg stock. Season. Cook for another 10 mins, add some diced tomato and cook another 2 mins and serve hot with nan or rice.
You can add extra chili, other veg, some prawns or TVP, extra flavour like coriander, etc etc to the above basic. Use different pastes for various results, or use sweet potato or yam in place of the potato.....
Hope this is of help.