Ski Bibs

I'm going skiing snow in a few weeks in CO, and I wanted to know that I should get pants ski bibs. I also need to know what legth for snowboarding, Im 5'11.

Acquiring the clothes you wear before the trip. Get the long underwear, waterproof pants or Gore-tex parka / jacket, gloves, hat, all before your trip. This will be one less thing to deal with when you get to CO Do not worry about the length of your snowboard, the people of the rental shop to equip yourself on the board of appropriate size depending on your weight, height and capacity. I do not know how much you weigh, but I would say the length of your board of directors will 160S low.

Yes, you will need the bibs or pants, because, unlike Florida, Colorado has more snow in March! The weather will be warmer than now, if you're lucky, but you still need to get pants. As for snowboarding, I have no idea so I'll let someone else answer.
Oh, and beware of rocks if your skiing in March is when they start popping all over the place.

if you go snowboarding, you can buy snow pants tighter than you can find. Snowboarding has become increasingly popular theres a huge market for boarding pants. Try Burton, they are really nice in a ton of different styles

Yes. Prepare. You'll be miserable without decent clothes. And the seller in a rental shop to choose your board for you. Do not travel with one, if you can help. It's such a hassle. Your own boots are more important than a board, and easier to travel with.