It all depends on how much money you want to spend. I had a V220 & went to a V551. Yea, they have the V557 out right now, but I wouldn't go for it though if you're not going to use the Ticker. The V551 has approximately 6,200 KB of available memory & the V557 only has around 4,200 KB. That right there is a huge downfall. I like the V551 because it has Bluetooth, an awesome camera compared to the V220, & a decent sized screen.
If you don't want to stick with Moto, then check out Cingular's website to see what other phones they're offering right now.