Play sounds when new Gmail emails arrives in your Inbox. Also, set a different sounds to play if emails containing specified text are received.

• PEN - Pennock's Email Notifier 2.5-18
  PEN is an easy to use, easy to setup Email Notifier that sits in your SysTray and pops up a small non-intrusive window and/or play a sound whenever new email arrives in your...

• GAlert 2.5.2.6
  GAlert (Google Alert) is an easy to use and high performance skinable Google notifier supports Google News(beta), multiple GMail accounts, label filters and automatic login

• Gmail Delete Large Attachments From Inbox Software 7.0
  Find and remove specified Gmail emails with attachments.

• Gmail Backup Local Files To Inbox Software 7.0
  Zip and email many local files to a Gmail inbox

• Chrysanth Email Notifier 2.3
  Chrysanth Email Notifier is a POP3, IMAP4 and Gmail notification software that helps you to get notified of every incoming email and even spams in your mail boxes while they are still sitting on the remote email servers

• Gmail Desktop Notifier 1.2
  Notifies you when you have new mail at your Gmail inbox using nice (and not annoying) popup alert on the Desktop

• Multi Email Notifier 3.6.1
  Email Notifier software for your email accounts

• Email Arrival Notifier 9.801
  Be informed of the new email messages arriving from multiple email accounts