The best bet for an entry level table is to get a better ball.  A softer, textured ball woould drastically change the play of the table.  You could try a few balls available from foosball.com (the gracious host of this fine forum!).
I would recommend the 5hour tumbled Tornado ball (red), the new Fireball ball (orange), and either a Shelti or Warrior ball (yellow).  These balls have varying degrees of hardness/softness and all of them are textured (fuzzy).  These ball should all be round and roll straight, as well as providing a little extra grip for pinning.  
Please feel free to ask any other questions you might have, and we will do our best to help out!
Also, is the table a Jett Challenger or Jett Tournament model?  Just curious.
You also might want to pickup some lube for the rods.  Since the table has ball bearings for the rods, I would recommend the "Superlube" for the rod lubrication instead of silicone.  The superlube works great for those bearings! 
Pat