Get a steel framed Uberti.. They make some of the best reproductions. Don't bother with the cheap brass framed stuff...
I have a repo second model Dragoon and an 1860 Army...Both in .44, both by Uberti. Fun to shoot.
Tips:
Use REAL 3F black powder and be sure to grease over the cylinders with Crisco, or animal fat.
Never use petrolium based oils on black powder guns, your gun will foul up quicker. . Use natural lubricants like animal fat to avoid fouling.
Dont waste money on black powder solvents. Use dish soap and hot water. Dry your gun off, and coat the metal parts in lard, Crisco, or TC bore butter.
Get a nipple wrench. Take the niples out every time you clean the cylinder. Run hot water through them, followed by a pipe cleaner. Lubricate threads with lard, etc...
Fire caps in all cylinders before loading them to clear out residual oils.
Pinch caps before putting them on the nipples to hold them on tighter.
When firing, tilt the revolver to one side after each shot to let the spent cap fall out, otherwise you risk the spent cap pieces falling into the hammer mechanism and jamming the revolver...
Get a flintlock...you have not lived until you have shot one.