If you are looking for a bit more power, get Prince Syn Gut Multifilament for $6.50. Since your racquet has a dense string pattern, multifilament strings won't break any time soon.
If you are looking for less power and a cheaper price, get Gosen OG Micro for $30 per reel of 660' (in reel to save more money). Another good synthetic gut is Prince Orignial Synthetic Gut for $4 - above average in everything, except tension maintenance.
By the way, welcome to the boards!