Advice.......Boots are the first thing that I would scrutinize. I don't care what brand you get. I care if they fit, and you can do what you want in them. This will take hiking time to figure out. I like a softer boot. Others like a harder boot. What do you like?
Pack is number two, but fit and cost are not related. I have cheap packs that worked great. I've used spendy packs that I wouldn't give to my worst enemy. My best advice is to buy a good one used, and get help in adjusting it. Most of the time, a good pack, adjusted right, will be useable.
Those are the two things that kill me or keep me in the game.
Almost everything else I can buy at Wal-mart and be fine with. Seriously, a cheap rifle, or bow, with cheap binos, and I can kill an elk, deer, or tree rats. We put waaaaayyyyy to much emphasis on optics and gear. Woodsmanship and animal knowledge kill critters. Gear is an aid, and we pretend it matters far more than it does.
The only caveat that I'll throw in is if you go to Alaska. Rain gear then becomes critical and cheap won't cut it. Mid-range will if chosen wisely, but even high end may not be awesome. Rain gear for Alaska takes some research to get right. Hint: If it says Helly, or Grundens, you're probably good to go.
Jeremy
^^^^ Read it. Read again. Memorize it