looking for particular set

says...

The blue 3x2 slope piece with the yellow triangles was only in the 4153
Build-N-Store Chest (1995).

From http://www.peeron.com/inv/parts/3298p18

The blue 3x4 slope piece with the yellow triangles was in these sets:

1827 - Helicopter (1997)
4153 - Build-N-Store Chest (1995)
2156 - Kabaya Promotional Set: Racer (2000)
1825 - Racing Car (1997)

From http://www.peeron.com/inv/parts/3297p02

The blue wedge piece may be from the 6536 Aero Hawk (1993), although the
picture on the web site appears to be darker than what you have. The web page
does not list a light blue version.

From http://www.peeron.com/inv/parts/6069  

--
Ken Rice -=:=- kennrice (AT) erols (DOT) com
http://users.erols.com/kennrice  - Lego Compatible Flex Track,
    Civil War Round Table of DC & Concentration Camp made of Lego bricks
http://members.tripod.com/~kennrice
    Maps of Ultima 7 Parts 1 & 2, Prophecy of the Shadow, Savage Empire,
    Crusaders of Dark Savant & Others.

Thanks for this very elaborate help.
It is much appreciated.