Having a breather, Several Questions

Ok, just got back to town from the Underdark ( still not been to 3 new places that appear yet ).

1, is it worth fighting the Githyanki over the silver blade? Do u find the hilt?

2, Do u ever fight Jans love rival if u pick him up again? can not decide whether to pick him up again and dump Imoen ( jan was the other member of my team before asylum ).

3, Is there anymore to Nalia story, after the grave yard visit?( i pick her up every now and then to see, day 48 and zip )

4, Can not get into Roenall or Delryn Estates, can not open the mechanism chest (Jyssten estate ) or other door ( sewer ). Are these part of the main story or side quests if u used other characters? also barred door in Deril estate.

5,lastly wheres the second part to the cache instructions u find in the temple ruins, i looked all round the area, could not find it so i assume u need both pieces?? do i find it later, or have i missed it?

Thanks

[Memnoch]

1. Yes. The hilt comes to you. Be prepared...be very prepared.
2. Leave this for others, haven't used Jan much
3. Assume you mean the funeral of her dad? Yes there is quite a bit more. Probably need to have her in your group for a length of time though.
4. Side quests related to the relevant characters (Anomen, Nalia, etc).
5. Part of the ranger stronghold quest if you are a ranger.

1. Yes, you'll be attacked for the blade in chapter six. Your attackers have the hilt. Was it just me, or were these githyanki incredibly weak?
2. The end of Jan's quest seemed to suggest more, but I've never seen anything else come out of it. Both statwise and in terms of character interaction, I'd still take Jan over Imoen.
3. She gets arrested by that Roenall bloke if you keep her in your party after the funeral.
4. Like Memnoch said.
5. See above.

[Memnoch]

It wasn't just you Armie, they were very weak weren't they? I barely raised up a sweat.