I've discovered a couple of exciting artists recently (well, John discovered me!)
John Salmon is a highly skilled and imaginative watercolourist who paints amazing dreamlike landscapes as well as paintings with a unique, vaguely cubist feel. John is a WetCanvas regular and uses a water charger device for special effects, innovating in technique as well as subject.
Natalia Molinero is another one to look out for. I've just found her art on Facebook. Hailing from Argentina her art is reminiscent of one of my favourite artists Roberto Matta but with an extra influence of pre-Columbian South American art. Her paintings are fascinating and the equal to those of Matta in my opinion and deserve to be as well known.