Some galleries trumpet their so-called hot artists with more pageantry. Other spaces are more conceptually ambitious (Angstrom). One has an indisputable track record that marries respectability and quality (Barry Whistler). And some have more consistently solid shows year-round (Photographs Do Not Bend). But Joe Allen's Purple Orchid and Randall Garrett's Plush--not necessarily a joint venture, though they share the same entrance--have one thing that has singularly enlivened the Dallas art scene in their two-year existence: reckless, unadulterated enthusiasm. Willing to try anything once--and maybe twice if it went poorly, just to make sure--exhibitions at Purple Orchid and Plush are frequently as mind-numbing as they are mind-melting, but that's part of their charm. They provide a ribald reminder that there's more to a gallery than pushing the work off the walls and into the homes of Highland Park.