hi, we developed several addons for jmeter, which i just integrated in jmeter 
2.3. we thought about providing them to the jmeter community, so here follows 
our addons/patches.

the first addon is a new controller, working similar to the switch controller - 
we call it "case controller" (which is helpful for avoiding use of several if-
controllers).

The Case Controller allows you run a subelement defined by a value. If this 
Controller has a child that matches the name (defined as „case value“), this 
subelement will be run. If there is no match, JMeter runs the element with the 
name „Default“ (not case-sensitive). If no default element exists, JMeter skips 
the Case Controller. 

e.g.: Variable ${test} exists with value "de"

+ CaseController with CaseValue=${test}
    + SimpleController called "de"
       + Request1
       + Request2 
    + SimpleController called "fr"
       + Request3
       + Request4

as the value of ${test} is "de", the casecontroller runs the simplecontroller 
with the name "de". without casecontroller, we would have to use two 
ifcontrollers.

cheers,
   chris