Agree with all of that, and would add as highs:

Getting Smith back
Make the decision to change our coaching back up.

highs.
Emergence of Clarkson and Ambler
reading John Holmes's book
getting Lee Smith back ( just get him fit again !! )


lows
death of Terry Newton
JP and Mags injuries
had hoped Kyle Amor would make a big impact, plenty of time for him though.

Gotta say the win at warrington was a high for me watching Senior roll back the years when he left Mathers standing!

Highs -
Hull FC away to clinch 4th.
Buderus' making James Graham's positioning look amateur for Webb's CC Semi try.
Warrington away in general (More specifically Eastwood try, McGuire running rings round everyone, and the look on the Wire fans faces when the 40 metre drop goal sailed over).
Quins away for the glimpse of the future. McShane handling responsibility incredibly well.
Wigan away. A loss yes, but the score line doesn't reflect one hell of a Champion fight with half a team. Earned a lot of respect from Wigan fans for that performance.
Ronnie's "School Boy" on Phil Clarke was priceless.

Lows -
Wembley
Eastwood. Gutted he's gone. So young, the future looked bright.
Saints away was just embarrassing more than it was 'low' but I have to put that here.
"PhilClarkeGate". I still think we deserve an apology.
Finding out Melbourne were only that good because they cheat. Poor advert for the game although it does make what Leeds have done (3 in a row) without breaking the cap even more special.

Heathrington saying he doesn't want the wcc trophey cos Melbourne won it fair n square but he was interested in the 50 grand prize money!!