I have an older version of Icewind Dale for pc, without the patch.. this is a HARD game, but I've discovered 3 very effective ways to cheat WITHOUT cheating.
1) Set AUTOPAUSE to when TARGET'S DESTROYED. Set GAME DIFFICULTY to VERY EASY. When you finally kill that tough character and it pauses, go to options and switch the difficulty back to NORMAL. VOILA! You get FULL EXPERIENCE points for defeating a tough creature in VERY EASY mode. (remember to switch back to very easy after you get the points!)
2) CLONE ITEMS. Leave one spot empty, or delete your weakest character. Put your BEST ITEMS on ANOTHER CHARACTER. EXPORT the character with your best items. Save. RELOAD your game. IMPORT that exported character. VOILA! You have duplicates of all his items.
3) FRIENDSHIP SPELL. Gold is HARD to come by in this game. See that Splintmail for 873-900 Gold Pieces? If you have a MAGE with HIGH CHARISMA (16 or so), cast FRIENDSHIP, then use that mage with the 21+ charisma to talk to the vendor. That splintmail is now 673 Gold Pieces! It works on anyone who sell items.
Enjoy!