Be careful! Your "I miss the ding quite a lot" comment has, I think, mislead some folks here.
There are two main methods of putting here.
1. Aiming off - where you move the aim marker to allow for the slope of the green. For this putters with high forgiveness are great as it will often adjust when you accidentally miss the ding. The Nike and Odyssey putters work well in this category.
2. Miss ding putting - where you leave the aim marker where it is and deliberately click early or late to allow for the slope of the green. For this type of putting putters with low forgiveness are best as they won't compensate for your deliberate miss. Of these types the Taylormade Daytona (Rossa) is one of the most used (it's also very cheap and very old) the Ping redwoods also come recommended.