As some of you might know, in the Patch 4.3 there will be a Looking For Raid option available which will form a 25-man raid to Dragon Soul. This LFR will have separate difficulty and gear from actual DS10 and 25 (read easier and worse loot). It is a good way (if you can manage through the suffering that is called pugs) to learn the fights and get some decent gear.
We however won't tell you to go do it. It's up to you if you feel like you have an hour or so to try the bosses with a pug and get to experience what it is to be 25 man raider if you so want. If you are going to use LFR, remember that you will be representing Ragnarök in it. Don't be evil unnecessarily and be polite.