Darkprophet:
Welcome to the site.
It sounds like you are into a more "current" sound. However, you might also want to check out the "grandfathers" of prog - the seminal groups from whom all other groups ultimately sprang.
The eight seminal groups, and the albums I would recommend, are:
King Crimson: In the Court of the Crimson King, Islands, Starless & Bible Black, Red.
Pink Floyd: Piper at the Gates of Dawn, Meddle, Dark Side of the Moon, Wish You Were Here, Animals.
The Moody Blues: A Question of Balance, On the Threshold of a Dream
Genesis: (Peter Gabriel era): Nursery Cryme, Foxtrot, Selling England by the Pound, The Lamb Lies Down on Broadway
Genesis: (Phil Collins era): Trick of the Tail, Wind & Wuthering, And Then There Were Three
Yes: Time and a Word, The Yes Album, Close to the Edge, Going for the One
Gentle Giant: Three Friends, Octopus, In a Glass House, The Power and the Glory, Interview
Jethro Tull: Thick as a Brick, Minstrel in the Gallery
ELP: ELP, Trilogy, Brain Salad Surgery
This is by no means a complete list of even the albums by these groups, and I'm certain other members will challenge my choices, or give you others.
The next (almost up to current) "era" is what we call "neo-prog." Among the best groups in this category are Marillion, IQ, Pendragon, Ark, and a number of non-english-speaking groups, especially from Italy (including PFM, Banco del Mutuo Soccorso, Il Balletto di Bronzo, Museo Rosenbach, Alusa Fallax, Deus ex Machina) and the Nordic countries (Anglagard, Aufklarung, et al). Probably the best neo-prog group is Marillion, which has had two distinct eras; one led by the singer-songwriter Fish, the other by the singer-songwriter Hogarth. The best of Fish-era Marillion are probably Misplaced Childhood and Clutching at Straws; of the Hogarth-era, Brave and Afraid of Sunlight.
What you might want to do is take a little time to read some of the reviews of the specific albums mentioned, or of various albums by the various groups.
It's alot, but it's worth it!
Have fun!