What GPU can I use for a 250 watt psu?

Here is a link to a a full page of info on my spare computer:
http://h20565.www2.hp.com/portal/site/hpsc/template.PAGE/public/kb/docDisplay?javax.portlet.begCacheTok=com.vignette.cachetoken&javax.portlet.endCacheTok=com.vignette.cachetoken&javax.portlet.prp_ba847bafb2a2d782fcbb0710b053ce01=wsrp-navigationalState%3DdocId%253Demr_na-c01412802-19%257CdocLocale%253D%257CcalledBy%253D&javax.portlet.tpst=ba847bafb2a2d782fcbb0710b053ce01&sp4ts.oid=3677047&ac.admitted=1389593126482.876444892.492883150

Okay, so I have a gaming computer, but I also have a spare one. I'm planning to upgrade the spare computer a little so I can LAN party on games like minecraft, trials evolution, games that are not too intense. I need to know the best GPU for a 250 watt psu, to know the specific type and everything click on the link above. My price range is from $25 to $35. I know that I'm not going to get the best GPU, but yeah. I plan on buying the GPU from ebay.

Amd radeon hd 5450 is around 9.99-19.99 new on newegg. Minecraft doesn't even need a good gpu to run. It is more of a cpu/ram intensive game. If minecraft doesn't run good now then you will notice no difference on this new card. This card can run trials on low settings but thats what you get for a cheap card