I thought that I would never like to hike/camp in the Winter. But that all changed after I tried it . I simply love to sit in my stormproof winter tent listening to a distant storm start to growl off in the distance. As it forms rapidly into a howling white fog laced with ice pellets hitting...
When looking to purchase a four season tent I feel more comfortable and confident buying a shelter with a proven track record like the TNF VE-25, Himalayan 47 or on the smaller size the Mountain 25 or the 36.
Winter tent considerations
I would also consider seriously TNF Mountain 25 or the Mountain 36. Both great winter tents but smaller than the VE-25; cost less also but equivalent in strength.
Winter tent
I've used the North Face VE-25 for years and was never disappointed. It's a proven winter performer all over the world for many years. As of late I've also used (only because it's larger) the North Face Himalayian, one of the most outstanding winter tents I ever used. www.northface.com
Daypack
Take a look at The North Face Yavapai; Backcountry has it available for around $68. Has everything that you said you needed and more. www.backcountry.com