Yeah - changing all of those fluids is actually a fairly easy thing to do. They're all designed so you can get to them relatively easily. Just expect to get dirty doing it.

One word of caution, here. Find out where you can dispose of the fluids legally and safely. Pouring them into the storm drains or the like is Very Bad. The antifreeze is very attractive to animals and it can't be metabolized. Basically, it crystallizes in their kidneys and they die a very, very painful death.

I believe most autopart stores will take oil that's not mixed with water and antifreeze as an additional (and likely free) service.