newbie Guild Wars question.

I currently just own Guild Wars Factions and really like it, but I was wondering if I buy nightfall is it possible to roll a new assassin in NF, ie starting from 0 to 20 doing the singleplayer. I ask this because I'm not really happy with my current sin in Factions.

no, you can't make an assassin in NF. Can only make either of the 6 core classes or a Paragon or Dervish

Here's a link to the Professions page in the wiki to help your decision on a new profession for Nightfall.
http://wiki.guildwars.com/wiki/Profe...gn_professions

Darn it, I was hoping it would allow me to make one, kind of like how I can make one of the Other professions in Factions.

Question #2 I can roll an Assassin in Factions and take him right over to Nightfall at lvl 1 then right? ( I ask this because I see Dervs in the early parts of Factions.)

No, you have to get to Kaineng Center first and by then you should be level 20.

Yeah you need to get to Kaineng.

Why would you like to make a new assassin if you don't like your current one? It's not like it will be much different (other than in appeareance maybe). Don't you like his appearance or is there something else?

Its sad, but yes I don't like his "look".

You'd have to reach Kaieng first. The reason you see low level dervishs in Factions is because they were "ferryed" over.

Unfortunately, there is no Sin armor purchasable in NF until you reach Vabbi (which is about half way through the storyline), so there is no way to really do it. You can still remake a sin in Factions and go through and reach Kaineng and then start out in NF at Consulate Docks. That's what I did with my sin.