Buying and Selling other items beside SoS will make a profit if you can do it in the right way.
For example: I bought 4 weapon elixirs before the raise in the cap from 70-80 at 600k.
Resold: 210K each, profit: 240k
Another example: The current spear I'm using is a SoS +3. When I bought it, it had +2, +1 str, and 1 Immortal, for 1.9mil By using the new alchemy system, I added +1 to it making it the +3, getting lucky added +3 int, and raised the critical from 7 to 12.
Plan to sell in a few levels for 3-4mil.
Elements are another key item you want to collect.
The main ones people buy are Wind Level 2, 4 and someone else said Earth 6
Earth 6 will be a long way off since you just started.
Noticing that this was your first post and that Key-J, Ryoko, SuicideGrl, or the other moderators haven't posted, I welcomone you to SRF.
Rules are located here so make sure to check them out.
http://www.silkroadforums.com/viewtopic.php?t=25
May Silkroad be good to you.