I thinnk it always helps to have English players generally (doesnt help the national team tho but im Welsh so i dont care lol) and now we have an English coach and a club full of spanish players and staff its even more important. PLUS, The main problem with our defence is set pieces and general concentration issues, so bringing someone like Bridge in would be a boost cus of his experience. Totally depends on the cost though as there are so many awesome left backs around but i do agree we should have kept Insua as he was the one youth player who was truly becoming awesome and wouldnt have cost a fee cus we already had him :S
Now totally contradicting my first statement we need a solid DM like Mazza but it wouldn't hurt if he could score too because when we're dominating weaker sides they put everyone back to defend and the ball often breaks loose to midfield where someone like Villareal's Marcos Senna could literally knock the netting off the goals with his power and long distance accuracy. Obviously we've got Gerrard but if he's taking the corner he's not going to be in position for the long shot and besides he's usually tightly marked anyway.
So we need more people who can score goals and not rely on our strikers.
Then again if we end up getting another striker who better than Nikola Zigic - that friggin giant is strong, awesome in the air and has a great goals record too. The guy makes Peter Crouch look like an umpa-lumpa 8-|. That said Valencia would never let him leave straight after selling Villa so another striker option would be Hoffenheim's Vedad Ibiševic - he can already speak English as he's half American and he's been banging them in for Hoffenheim for two years.
If we had say 30m to spend i would go for Marcos Senna (est 13m), Bridge (est 7m) and Ibisevic (est 10m). (although bear in mind i just guessed those prices) (H)
Edit: I aint been following the recent transfers that much lately so has anybody snapped up Palacios yet cus i rate him very very highly. Trouble is he's not really a holding midfielder, but he's a proven ball-winner with an incredible work rate and strength.