samba - Sep 2007 - Problems with slow printing

Hello,
My name is Shane Drinkwater. I have had a problem since samba-3.0.25 with
printing being very, very slow. It takes about 15- 30 seconds for the print
dialog box to appear. After selecting OK the print happens in a reasonable time.
File serving performance seems to be similar to previous revs of samba. I did
read the "Problems with slow printing (and name resolving?)" thread. I
do not have any printers that have been discontinued, plus new workstations are
seeing the same slowness in printing. Has anyone else seen this or have a hint
as to what is happening??
I am running on Red Hat Enterprise 5 with samba-3.0.25b/Cups 1.2.4

My smb.conf
[global]
  netbios name = medusa
  netbios aliases = insuranceSrv wellnessSrv accountingSrv backupSrv lisSrv
personnelSrv hercules
  security = domain
  large readwrite = yes
  encrypt passwords = yes
  workgroup = CSQ
  server string = central file server
  printing  = cups
  printcap name = cups
  load printers = yes
  domain master = no
  local master = no
  map to guest = bad user
  name resolve order = wins bcast host
  preferred master = no
  log file = /var/log/samba/%m.log
  socket options = TCP_NODELAY SO_SNDBUF=16384 SO_RCVBUF=16384
  wins server = 172.27.1.17
#=======================Winbindd Stuff
=================================#=======================Winbindd Stuff
=================================        password server = *
        winbind uid = 10000-20000
        winbind gid = 10000-20000
        winbind separator = +
        template shell = /bin/bash
        template homedir = /home/%D/%U
        winbind cache time = 60
        winbind enum users = yes
        winbind enum groups = yes
        winbind use default domain = yes

[printers]
  comment = All Printers
  path = /var/spool/samba
  public = yes
  guest ok = yes
  writable = yes
  printable = yes

[print$]
  comment = Printer Driver Download Area
  path = /home/samba/printerdrivers
  guest ok = yes
  browseable = yes
  read only = yes
  write list = @CSQ+shane,@CSQ+Administrator,@CSQ+Programmers
[NT-apps]
   path = /home/samba/ntapps
   create mode = 777
   directory mode = 777
   writable = yes
   public = yes

[public]
  path = /home/samba/public
  writable = yes
  public = yes
  create mask = 0777
  directory mask = 0777

[cedi]
   path = /home/samba/cedi/cedi
   dos filetime resolution = yes
#   oplocks = false
#   level2 oplocks = false
   valid users = @CSQ+Programmers,@"CSQ+Domain
Admins",@"CSQ+Domain Users"
   write list = @CSQ+Programmers,@"CSQ+Domain
Admins",@"CSQ+Domain Users"
   create mode = 777
   directory mode = 777

[cediarc]
   path = /home/samba/cedi/cediarc
#   oplocks = false
#   level2 oplocks = false
   valid users = @CSQ+Programmers,@"CSQ+Domain
Admins",@"CSQ+Domain Users"
   write list = @CSQ+Programmers,@"CSQ+Domain
Admins",@"CSQ+Domain Users"
   create mode = 777
   directory mode = 777
                                                                                
Thank you for your time
                                                                                
Shane



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