I have two Wachovia accounts, one joint with the wife so she has access to pay something on the home mortgage and HELOC loan, or if I need to shoot her some cash if I'm out of town...like Florida for two months, and an account for me to just cash checks for the HELOC to deposit it where ever I need it. I have a Chase bank account that my paycheck get direct deposited into, and I pay all my other bills from that with no problems, and I also have my car loan going thru them. Countrywide for the mortgage and HELOC loan, Citibank for the business credit card and also another account there for my student loans. I have a Macy's visa card for emergancies...and thats it. The rest of my money is tied up in Fidelity for the 401K and saving plans.
With that huge mass of confusing bank accounts and crap...I've never had any major problems.