Keen to hear if you lot have had experience with any below with some insight to add

My current gear consists of:
- Sigma 10-20mm f/3.5 EX DC HSM
- Nikon AF-S DX Nikkor 35mm f1.8G
- Nikon AF 35-70mm f/3.3-4.5 (old & shitty, non IF)
- Nikon AF-S DX Nikkor 18-55mm f3.5-5.6G VR II
(Why the f*** is the table bbcode disabled?

Here is what I currently have in my sights:
Tamron AF 70-300mm F/4-5.6 Di LD Macro 1:2 Lens
$168 online @ CameraSky, $239.00 in store @ digitalcamerawarehouse
+Makes my 18-55mm lens relevant
+300mm reach
Nikkor AF-S DX Zoom 55-200 F4-5.6G ED VR II
$192 online @ CameraSky, $237.00 in store @ digitalcamerawarehouse
+Makes my 18-55mm lens relevant
-Not 300mm
Nikon AF-S DX Nikkor 55-300mm f/4.5-5.6G ED VR Lens
$281 online @ CameraSky, $349.00 in store @ digitalcamerawarehouse
+Makes my 18-55mm lens relevent
+Lots of reach
Nikon AF-S DX Nikkor 18-105mm f/3.5-5.6G ED VR Lens
$297 online @ CameraSky, $369.00 in store @ digitalcamerawarehouse
+Next step in my lens progression
-Not a lot of reach
Tamron AF 18-200mm F/3.5-6.3 XR Di II Lens
$197 online @ CameraSky, $415.00 in store @ digitalcamerawarehouse
+Lots of zoomyness
-Pricey?
Not sure what the huge price disparity is all about with the last one...