I need some bats

[iwonthisleague]

here is my team
Pitcing:
Unit
Hudson
Miller(wade)
Nen
Izzy
Brown(kevin)
Contreras
Weaver(traded for Rodrigo Lopez)
Radke
Mantei
Hitting:
Olivio
Klesko
Walker(todd)
Tajada
Williams(bernie)
Winn
Nixon/Millar(i think both can put up decent numbers this year, but i am just blowing smoke for my home team)
Sexson
Phillips
Crede

Now if Philips is good i will play him over walker and maybe trade Walker.
So I need cathcer cause i heard Olivio lost his starting job
and i'd like some more power
What trades do you think i could make to get another bat and what players are good pickups off waivers.