I wouldn't worry too much about your character's gear level until you reach level 85. Up to that point, you can acquire decent gear through quests and regular dungeons. Once you reach level 85, you can acquire better gear by running high-level dungeons and heroics, getting reputation from the various factions, etc. Specific suggestions for your class and spec can be found on the internet. I'd suggest starting at WoW Insider (link below)
really wow get BC and WTLK then buy cata then install
Don't worry about it. Just do dungeons and level up.
The starting gear for Death Knights is pretty good, better than some epics at 60, but if you really need decked out in gear that will be replaced in a level or two you can have a bladcksmith make you some armor probably.
The heirloom gear is considered ilevel 1 no matter what level you use it at. This means that the only enchantments that you can put on it are Pre-BC enchantments (the ones that don't have a level restriction).
only after selecting to purchase normal wow, other than that im pretty sure you have to buy, buying cata and wotlk dont give any time that i know
the T10 class gear
orc gear
When starting WoW, the launcher already checks the patch level and will download the patches required to play the game. If you want to do this manually, you can check for download mirrors for the patch, which are documented on third party sites like wowwiki and wowpedia.
Dis-Enchant is a spell that is part of the Enchanting profession. It allows you to take a piece of gear (Uncommon, Rare, or Epic) and basically rip it apart, receiving either dust or essences. In the case of disenchanting epic gear, you will get a crystal shard of some level (depending on the level of the gear). Note that some gear can not be disenchanted, most notable are the pvp gear that you receive from honor points.
Yes there probably is because in the FAQ in WoW Cata, it had a question which asked if there was going to be a new hero class. Blizzard said that in Cata they were focusing in the classes and races to add changes or to alter the game play of them. They also stated that there might be a new hero class in the future which sounds like hints that they are going to make a new expansion. We have to wait it out and see.
5500 without gear
5500 without gear