Onion Creek first sprang to the owners' minds while they were tubing in the Hill Country, and was birthed while the Heights was recovering from Tropical Storm Allison. Since, it has attracted a loyal, eclectic following: Bikers find it a place a tad nicer than most, gays and lesbians feel right at home, yuppies feel hip and happenin' by dint of the other, eclectic patrons, and all enjoy generous portions of not-too-shabby food and excellent Katz's coffee. The yuppie contingent tends to raise the bar for the rest of us: On a recent visit, one of the friendly baristas asked a stay-at-home mom how the kids were, and she took the opportunity to regale him about little Caleb's latest antics. Then, grateful for being able to talk to another adult about her favorite topic, she placed a $5 tip on the bar with a flourish. The barista seemed nonchalant: When we left, with the smoothest, richest lattes this side of Portland, Oregon, the fin was still on the bar.