I've got a lot more than five on my current "wish list" but I'd say these are currently hovering near the top:
Ruger Super Blackhawk Bisley Hunter - I'm not a hunter, so this will just see use on the range, but I've wanted to add a .44 magnum to my collection for years, and this gun just appeals to me.
Savage 110 Scout - I'm looking at this strictly as another range gun. I've always been fascinated by Cooper's "scout rifle" concept since I first read about it so this seemed a good match to me. I also like the adjustable stock on this rifle.
Marlin Model 1895CB - The 45-70 is another cartridge I really have no practical use for but I've wanted one for a while, and I like the look of the long barreled lever gun in this caliber. I'll probably try to check one out in person, rather than order one online, as the bad QA reputation of the new Marlin guns still haunts the brand.
S&W Model 17 Masterpiece - A friend of mine has one of these and I fell in love with it the first time he let me shoot it. A beautiful, classic, revolver.