So I can't really find a definitive answer on this really...

I can get LINQ to compile fine in VS 2005 but the design time support (intellisense) etc.... Isn't there so it makes writing the stuff really annoying

From what I can tell the way you get design time support is by installing the MAY 2006 CTP of LINQ

Which seems kind of ok but not really...

Seems better to just wait until I upgrade to VS 2008 before I start really integrating LINQ that much...

thoughts?

LINQ should be part of .NET framework 3.5.  Do you have that installed?

Yea

See I can get it to compile just fine..

Like if I write a LINQ expression in VS 2005 I get no intellisense and parts of the expression get underlined in red and have messages like "Invalid syntax" "; expected", etc...

But the project compiles just fine...

You cannot use Linq in VS 2005. Linq requires .NET 3.5 while VS 2005 only supports .NET 2.0 framework. You need to upgrade to VS 2008 to use Linq.