Howie, I had to make a couple of corrections to get this query to fly.

DECLARE @FreeHandheldMemory TABLE
(
UserConfigId int,
FreeHHBytes int
)

INSERT INTO @FreeHandheldMemory ( UserConfigId, FreeHHBytes )

I changed refs to FreeHandheldMemory to @FreeHandheldMemory and added spaces between the parenthesis. Without these, it threw an error on the TABLE declaration.

Carry on!