CHESSNOID

This may not be the Pacquiao vs Mayweather fight, but I think this will still be entertaining to watch.  You never know how a fight will end in boxing.  I am expecting Pacquaio to knock out Clottey.  That is my easy prediction and we will see this weekend.
Clottey is a good fighter and many underrate [...]

Looks like UFC is dominating the month of March when it comes to MMA. From MMA Junkie:

UFC on Versus 1: Vera vs. Jones
Mar 21, 2010
DREAM.13
Mar 22, 2010
Strikeforce Challengers VII
Mar 26, 2010
UFC 111: St-Pierre vs. Hardy
Mar 27, 2010
“The Ultimate Fighter 11″ debut
Mar 31, 2010
UFC Fight Night 21: Florian vs. Gomi
Mar 31, 2010

More opportunities to watch [...]

I think there are many mma fans who appreciate good fights.  I think the new Strikeforce card on CBS will be extremely entertaining.  I think these fights are confirmed:
Strikeforce:
Two of the Top 5 Middleweights in the World Collide in the Main Event When Former UFC and PRIDE Champion Dan Henderson, Who Departed the UFC in [...]

Yes, we have another UFC this weekend.  UFC 110 and the card looks pretty decent.
Wikipedia:
Main Card

Heavyweight Bout:  Antonio Rodrigo Nogueira vs.  Cain Velasquez[1]
Middleweight Bout:  Wanderlei Silva vs.  Michael Bisping[1]
Lightweight Bout:  Joe Stevenson vs.  George Sotiropoulos[1]
Light Heavyweight Bout:  Keith Jardine vs.  Ryan Bader[1]
Heavyweight Bout:  Mirko Filipovi? vs.  Ben Rothwell[1]

Preliminary Card

Light Heavyweight Bout:  Elvis Sinosic vs.  Chris [...]