Don't spend a fortune on vertical enclosures that look good. Build them yourself and keep the money.
This is so simple!!
Get a bookshelf that has the dimensions that you like and the right number of shelves. Measure the back and get a piece of peg board cut to fit it (or fine wire mesh). Add a 3-4 inch piece of wood on the bottom of each shelf for a lip at the front of the enclosure if you wish. Get some of the plastic sliding door track (home depot or revy...1/8th inch size) and glue that in. Go to a plastic shop and get some plexiglass or poly carbonate cut to the size of the opening...add about an inch to the length for the overlap and take about 1/4 inch off the height for the track allowance. Get some ceramic light fixtures (don't use the cheaper plastic ones...they are useless) and hook them all up with the bases (don't skip this or the wires will be pinched under the fixture and will eventually wear away) and attach them to the side of the enclosure close to the front (less access for the reptile and the heat from the wires doesn't affect the upper enclosures) and then feed the wire through the backing. Hard wire in a dimmer (you don't want any more than 2 enclosures per dimmer) and you are done!
Easy, cheap, and if you put them together with some attention to the details they can look totally professional.