Anybody know how I can do this?

    case blocktype
             when 1 then 'Ind: '+blockDesc 
             when 2 
                 case blockTypeChar when ' ' then 'Grp: '+blockDesc else 'Spec: '+BlockTypeChar end as mytext
	end as blockdesc,

Here is the issue. I have a block type that will be 1 or 2, if it's 2, then the BlockTypeChar will either be blank or have a S.

BlockType=1 then return 'Ind' + Block Desc
BlockType=2 and BlockTypeChar = blank return 'Grp' + BlockDesc
BlockType=3 and BlockTypeChar = 'S' return 'Spec' + BlockDesc

Thanks