TIPS ?????????????

My Engagement Party is on Valentines day and I need some help in the tipping department! I knoow its not the wedding so I do not want to overdue it but:

How much would you tip the:

Bartender (2 guys)
Balloon lady
Dj ( 2 MC's ) ???

Thank you guys XoXOXo

Just a suggestion:

Bartender (2 guys): these guys will prob. work the hardest, so maybe $50 each. Remember, some people tip the bartenders themselves,
Balloon lady: $20-$35- that depends what she is doing exactly
Dj ( 2 MC's ): $50 each.

We tipped our DJ and Bartenders $50 each at our eparty.