I love to shop and spend money, so Im happy to spend your money as well. This isnt an exhaustive list, but its a good start:
Big Agnes Seedhouse SL 2 Tent
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Backpack: About 4,000 cubic inches should be right. s Atmos 65 ($240) is exactly that, and it has lightweight but rugged construction, an excellent suspension, and handy features such as a sleeping bag compartment. Your wife might like s Deva 60 ($250), which is slightly smaller than the Atmos and is fitted for a woman. Great suspension, convenient loading features, and ruggedly made.
Tent: The Seedhouse SL 2 ($320) weighs just around three pounds and sleeps two. Theres a lot of mesh on that tent, so if you want something suitable for cooler nights, I like the Aeolos 2P ($335). And Clip Flashlight CD 2 ($180) combines light weight (four pounds) and rugged all-weather construction. The one trade-off is that its not free-standing.
Sleeping bag: The Arroyo ($250) is a super-light (one pound, 11 ounces) 30-degree down bag. If you prefer synthetic for any reason, s Ultralamina +32 bag ($180) is warm, light (31 ounces), and compressible.
Pad: You cant go wrong with the ProLite 4 ($95).
Clothing: Well, you have thousands of options here. I would build my outfit around a set of Capilene 1 ($38 for long-sleeve tops, $36 for bottoms); 200-weight Polartec fleece ( Woodland Fleece Jacket, $38); sturdy hiking pants ( Gamma LT pants, $150 but you will thank me later); and a light rain shell ( Shuksan Jacket with eVent fabric, $289). You can add outdoor or trekking wear (shorts and that sort of thing) from makers such as to round things out.
This should get you started. Light, useful, and comfortable stuff, all of it.
The 2008-09 Winter ϳԹ Buyers Guide is on newsstands now. Look for it online soon so you can get prepped for gift-giving seasoneven if everything you pick is for yourself!