Career choices

i have been having sleepless nights...
thinking about my career.
i am currently in department 'a'.
i love my job. i love what i do.

despite no academic background in it (i am an engineer), i am doing quite well.
have been in this team since august 2006. that's almost 2 years!

in these 2 years, i have done everything end to end. and what i am fearing now is...i have reached the peak in my learning curve. is it time to move? laterally? upwards? another department?

i should be promoted to sr exec soon. that is if i ever get around to writing up my prolific success (whatever that means). i just find it difficult to write about myself. especially when it comes to selling myself (despite what everyone else thinks).

thing is, i have been offered another position in something i have never done before. it sounds tempting, as this is the line i have been wanting to get into. so maybe, i will just list down the pros and cons at this stage. oh and definitely "up" my prayers to God.

Department A
Pros:

1. High profile
2. Think i am good at it (which is also recognised by management)
3. Department A gives out the best bonuses
4. Job satisfaction
5. Stimulates the brain and creativity

Cons:

1. Flat structure. If i want to get promoted to assistant manager, i would need subordinates
2. Even if i were to stay within Department A, but a different team...it will pretty much be the same job scope. Even with added responsibility, it just means multiple projects.
3. Current boss (who is contracted) will not be around forever. i may have left a good impression with him, but once he is gone...would this be translated to his successor??

Department B
Pros:

1. New skills to be attained
2. New people to meet
3. Something i have always wanted to do
4. this is the field i want to get into when i move out of the company. which means that this will be a good platform.
5. Slower paced - which could be more ideal, if i want to start building a family
6. good team - miss dell is part of the team, and she thinks it is very good
7. it is an Asst. Mgr role, which means i can grow into this position.

Cons:

1. new skills - tough at first. though, i am one to adapt quite quickly.
2. move a new floor. not as nice as where i am sitting now!
3. must actually abide to company's dressing policies (i used to wear jeans on casual days, even though it's not allowed)
4. might not be as good in this department, as i was in the previous one.
5. might be seen as a "demotion" from where i came from. well, at least might be JUDGED or PERCEIVED as if i couldn't hack it in the previous department.

*sigh*...

any advice anyone?

time to turn to God...