give me a hint about specific gear score progression

my character's gear score is 4800 and will be 4900 sooner or later

i already have the staff "Tower of the Mouldering Corpse" on my feral druid - the item level is 219

and here's what i've planned to get better weapons just step by step.

the "Journey's End" drops from the boss of naxxramas the Kel'Thuzad - item level 226

the "Twisted Visage" drops from the boss of ulduar the XT-002 Deconstructor - item level 232

the "Dreambinder" drops from the boss of ulduar the "Algalon the Observer" - item level 239

and now the plan has bashed off, thanks to the community.

any helpful advice will be appreciated.

You can do it the way you want, if that's what rocks your boat. No one can bash your plans but yourself.

But usually people get the same you have
http://wotlk.cavernoftime.com/item=49793
http://wotlk.cavernoftime.com/item=50296

Then just go for TOC wepons, even that is optional.
People just jump straight into ICC 10.

thank you sir/mam