B. M. Everett
With the begin of the 'Renaissance' actual sound blaster support has been added. This means realistic audio with voice, and background music. Although I have to admit in Might and Magic III the voice audio is really lousy and may not work with all systems. I wouldn't worry about that too much because there is only voice twice in the game, and the only time it's important is at the end but there's text there so you won't get too confused.
Also witht the 'Renaissance' is better visual. I don't know how to explain it, you have to see for yourself. The images in Isles of Terra just look a lot better than those in it's prequils. I also like the way combat was done. I admit combat really got boring when you had a long list of monsters. Combat goes a lot faster and is a lot more exiting.
Overal Isles of Terra is a quick fun game. It really is too quick though. I expect it should take you a week at max to complete it.
Destroying a monster's hut in an area will make it so those monster's no longer appear in that area. Keep in mind that with no monster's no experince can be gained. This isn't a problem if you stick to the same party members (you'll gain enough experince), but if you switch member's often you won't gain the amount of experince you recquire
Hirelings are available for hire, but I never needed to use them six members are just fine, and who wants to spend the extra money.