Hold ON! I Need Money
Resource Gathering
Level 40, and 1 gold for a horse?!?! Well, most people say you wont see 1Gold until your level 55 or you buy it from online currency vendors (DONT DO IT!). That's simply not true,. Level 40 is a great time to use your 40 levels of uberness against the weak and feeble lands of the lev 20 mobs. However, grinding mobs just isn't easily doable because your inventory space is so limited. So My suggestion is to Gather resources. I created a Gathering guide HERE. Take a look to learn more. Once you know the basics, a great way to gather lots of resources without the competition of a PVE server or the ganking of a PvP server is to enter Khopshef zone ON EPIC MODE. No one does Khopshef on epic (except those who have read this paragraph of my guide).
When you enter Khopshef on epic the zone will most likely be entirely deserted. That means all NODES ARE YOURS. This is great, except that when you create a new zone, the nodes are set at 1%. Let them grow a bit, this is a good time to go stretch your legs, eat some dinner, check out a quality TV show (ALF re-runs!!). After about 30 minutes the nodes will be at 30-40%. Now its time to go collect your cash. At this stage of the game, focus on Silver and Copper. They sell the best, however check the Traders to see what resources are selling well specifically on your server. The 30 minute wait may seem slow, but the payout will be high in the end.
There used to be a time where a level 40 could farm Epic Bosses for cash. That time has come and gone! Level 20 bosses will 1 hit you and 2 hit a level 60 (How's that for deflation of your ego). Don't try it.
Gem Gathering
The market has now risen for Gems. Most people think that its the gemcrafters that make all the money. Not so, in fact its more likely that performing a craft on any gem will significantly diminish its value ...turning that Flawless diamond into a +15 gem of flatulance slotted only into kilts. So, dont alter any gem you loot, just sell em. When looking for valuable gems think Christmas...Red and green gems are worth money. The rest are more of a waste of a resource slot. However, check your trader and search for lev 40 gems using the keyword 'Uncut' or 'flawless' to see whats selling. Gems randomly drop from level 40 humanoids, so when looking for cash at lev 39-40, consider heading to Old Tarantia's Noble District for some gem farming.