Pendragon - Pure
Pendragon - Passion
While I second these recommendations, these come from a phase in Pendragon's history where the guitars are quite dominant, giving it an almost prog-metal feel. If you want the traditional keyboard-dominated sound, I'd also recommend earlier Pendragon albums, especially Window of Life, Masquerade Overture and Not Of This World, an emotionally powerful album which for me is the absolute peak of their real neo-prog sound. After Not Of This World, they took a considerable left turn in their sound.