This is a variation of Pickit2 clone that I have made earlier
Earlier posts are in the blog archive.
or go here Earlier Version
Update 15 aug: PCB layout files for eagle. Thanks to Toobert for sharing it. Download it from here
I recommend going through the readme and problem reported by toobert in the comment section
Updated( 4 may 2011) as the last schematic is reported as bit complicated and many find it difficult to understand and difficult to make. So I simplified it with a small idea of two different jumpers and an LM317; which is readily available....So now you may use with 3.3 or 5/ i heard that microchip have 2V devices also, so if you want with some jumper configuration or use and extra lm317 and one more jumper to derive one more voltage.
In this I have enabled the VDD power delivering capacity of the pickit2 with normal components.
Here use the jumper to switch Pickit2 VDD or External.
If u want to give VDD from PICKIT2 then use j3 and j4 according to the vdd of target PIC.
else leave the jumpers open.
If your circuit draws more than 150mA; I recommend using the external VDD supply (2-3 jumper position).
And be very cautious to use the jumpers also else u will get your pic burned with a wrong VDD.