Japanese sentence help please?

兄ちゃんがせっかく
あなたとバレー話
しようとしてたのに
ジャマしちゃったな

I am having difficulties translating this sentence
This is my translation:

'Even though my brother put effort talking about volleyball with you,it went smoothly.'

Can you correct it please? No google translate bc it makes no sense, thank you c;

?2014-11-01T08:05:38Z

Favorite Answer

How about...

Even though my brother was trying to (or, was about to) talk about volleyball with you, (it seems that) I interrupted your conversation.

兄ちゃんが brother
せっかく>> even though? http://www.maggiesensei.com/en/2009/11/01/%E3%81%9B%E3%81%A3%E3%81%8B%E3%81%8F-%EF%BC%88sekkaku/
あなたと with you
バレー話しようとしてたのに was trying to talk about volleyball
ジャマしちゃったな (I am sorry)(it seems like) I interrupted (your conversation)