Im sure alot of you have got the Chaos ring by now after gettin 100% souls (I just managed this, this morning )
Anyways, after doing some research there are actually more souls you can get...

http://www.angelfire.com/stars5/tkcp...os_glitch.html

There are numerous glitches in the game, as shown by this page... I recommend you watch the Glitched Souls video further down the page, its quite interesting!

Also videos of the weapons Vampire Killer and Alucard Sword in action too...

Quite cool, thought id give it a mention here for others to see...