Before anyone asks - yes there are archived copies of old addon versions both on our github repository and on several of the addon sites we use, and these will continue to be available after Cataclysm comes out, so you'll be able to get those old files if you really want them. I'm not going to bother making these more easily accessible unless you give me a very good reason. "I'm on a private server and I need them since we didn't upgrade to Cataclysm" is a BAD reason - and it's illegal.
The neutral auction house can become one of your best friends. Other players are constantly checking both factions' auction houses to find an appropriate price for the good they demand. Often times, goods are cheaper on the alliance because they have more people, thus, the supply increases as demand decreases and price goes down. If you are horde, feel free to transfer gold to your alliance toon through the neutral auction house in order to buy them item and bring it back to the horde side where it is more expensive. The 15%, as of patch 3.3.3 (down from 30%) is well worth the extra 50% or more you can easily make on one item alone. Blizzard decreased the neutral cut for a reason to 15%, that reason is to get trade facilitated between the horde and alliance. Make sure you take advantage of this! Tips when trading between factions:
TSM has a very steep learning curve, as it is a total profession framework. It does not hold your hand, and requires a lot of setup. Luckily you can import settings from other players and there are a ton of settings out there. I have published most of my settings in my pastebin here. You can also check out Sheyrahs. If you want to learn it from the ground up I suggest one of the following guides: PhatLewts, Sheyrah, WTBGold.
Any item with a grey name is considered vendor trash or poor quality. White items have some use such as tradeskills, spell reagents or reputation raisers, so you may want to check to see if they're worth more than the vendor price. Keep your eyes out for regular quality weapons, as even the worst of these tend to sell for several silver, or several gold at high level. Always check the tooltip for the vendor price before discarding anything. Also, white (or even grey) shoulder armor under level 20 sells regularly on the auction house, mainly because there is nothing better available at that level.
After you completed the quest chain, you will get [Draenor Enchanting] and [Garrison Blueprint: Enchanter's Study, Level 1]. This scroll upgrades your maximum Enchanting skill to 700 and you will also learn a few basic recipes. The blueprint simply let's you build an Enchanter's Study at your garrison. You will use this building to complete work orders and to learn every new recipe.
Obtaining Items from the Black Market Auction House Everything about the Black Market Auction House, including unique items for sale, how to place bids, and where to find the Auction House. Professions in Battle for Azeroth Professions in Battle for Azeroth, the next WoW expansion after Legion, have received a significant update, with many new recipes as well as a significant skill squish. In this overview, we'll highlight the major recipes, reagents, and useful items each profession offers. Obtaining Blizzard Shop and BlizzCon Vanity Items How to purchase and collect all of the mounts and pets from the in-game Blizzard Shop and special promotional events like BlizzCon. Obtaining All the WoW Trading Card Game Items Learn all about the quirky Trading Card Game items, from spectral mounts to weather machines, as well as look-alike items that are easier to obtain.