Rob is spot on. I have an Internature as well as some super high end bows and the Viper is a good bow for the price. My advice is change the big fat heavy flemish string for a 14 strand endless fast flite and if you are handy with a rasp take the tips down a bit as they are huge.
Keep an eye on the
NFAS small ads - I have picked up a couple of very good bows at less than eBay prices.
For the money I honestly believe the Bowtec AFBs are outstanding value.
http://www.bowtecbows.com
The designs, build quality and finish are outstanding and the costs are extremely low for a UK made custom bow. 42-45lbs will be plenty.