I agree with the above comments regarding you pack. Good pack for long backpacking trips, but you'll want something more streamlined for climbing. Never used those cold cold world packs, but they definitely look nice for the price. Also, unless you plan on doing huge multi day or winter climbs, id keep your day pack volume to 30-40L, and 50-60L range for 1-3 nights should work. The more space you have, the more tempted you'll be to fill it with non essential items.
Browse the yard sale here for some deals on used gear. Check out sites like geartrade.com for some other used gear. Some guide companies, like alpine ascents, occasionally sell of rental gear.
http://www.alpineascents.com/gear/SalesBrochure.pdf
Good luck, and have fun.