New to the forums, sorry if this is stupid or anything.

I am currently with Nextel and have a i730. The phone has gone through some really rough times and I think its time to replace it. I've been debating which phone to get but I can't decide. I do some hard work but I also go out a lot. I want something that can stand up to both work and play, something that most iden phones I've had can do. The only real problem I have is that my i730 is kind of fickle with the service. One second it will have full service, you pick it up and all of a sudden there is none or very little. I would like a phone, that if possible, doesn't do this as much. I can't really go experimenting around with all of them so I'm looking for opinions. I was interested in the i860 but I liked the Bluetooth of the i605. Is there a i860 type phone coming out soon with Bluetooth or is the i605 the only one? How do the i605 and i860 compare? Any advice or comment would be greatly appreciated.