My own feeling is that what you want is a good all-purpose three-season or "convertible" tent. Convertibles include Mountain Hardwear's Muir Trail ($380; five pounds, eight ounces), a tent that is at home either on a casual hike or on most climbs short of expedition work. Ditto for MSR's new Fusion 2 ($300; six pounds, 11 ounces) and Sierra Designs' Omega CD ($289; six pounds, two ounces).
In a straight three-season tent, the classic has for years been the Sierra Designs Meteor Light CD ($279; six pounds, 12 ounces) and it's still very hard to beat with its roomy interior and big side-mounted door for access and ventilation. And there's the Dana Design Mojo ($359; six pounds, 1 ounce), which has front AND rear doors and a big vestibule. So, plenty to choose from.
Keep in mind that from the standpoint of sheer sturdiness there's not a whole lot of difference between a three-season tent and a mountaineering tent. The higher-end tents may add a pole for better snow-loading capacity, but the main difference is that mountain tents have less ventilation, may have more floor space to accommodate bulky sleeping bags, and often have larger vestibules to facilitate storage and even cooking. Basic materials - fabric and poles - and construction are essentially the same.