Selling on EBay can be rewarding.
As Nathan suggested:
Good pics
Tell the whole story - warts an all approach
As Frostype400 mentioned:
Set payment and pick up time limits so you can get closure.
My tips:
Be wary of offers to finish deals offline /outside eBay other than COD
Be prepared that people may bid and not pay for items, then you have to deal with second chance offers or relisting item.
Decide if you want to post / deliver or not, or if buyers can collect goods, and where from.
Payment methods vary, PayPal is secure (I believe), but has associated fees, / as does eBay.
It is a great experience, and can be rewarding, just practice commons sense and online safety.
Some of this might sound very risk averse, and I don't mean to be alarmist, however I don't want anyone getting done like I did. A few years ago, I sold some car parts, guy turns up to pick up and pay, urgently needs to use the bathroom. 2 days later, house is broken into, perp avoided alarm and got away withy more than someone would without inside knowledge. I know the evidence is circumstantial, but too much of a coincidence for my liking. I now post anything I sell, or get buyers to meet me at work...... A neutral location.