Sinis...
There are so many belief systems out there, some worship personal deities, some worship impersonal deities, some worship many deities, and of course, some worship nothing but themselves.
My personal conclusion on the matter is that although God is often described as being "personal" (i.e. with a persona) and having a name etc... this is just mankind's attempt to attribute human-like traits to the real God. Polytheism is a great example of this. Polytheistic religions worship and believe in many gods. They note that there are many different aspects to the world, and often attribute a different god to each facet of their lives. Let's take Egyptian beliefs as an example. The sun god made sure the sun came up (Ra), the god of wisdom (Thoth) blessed those who studied and meditated, the god of the dead (Osiris) made sure that people passed to the other side readily.
All of these are simply the separate facets of the real God. When we bring them all together, we see a much more vast, intricate, loving God.
I tend not to pray to a named, personal God any more... I simply pray to God. He know's who I'm talking to.
KJ
P.S. Just as I was about to hit Submit, I noticed I just subconsciously attributed a gender to something that is genderless. I guess some habits are hard to break.
P.P.S. There is a lot to be said for the phrase "God is love" ;)