As per the Iraq Coalition Casualties page:
US fatalities: 2,602 (92% of all ‘coalition’ fatalities)
US wounded: 19,387 (46% unable to return to duty after 72 hrs)
Expect the 20K wounded mark around the end of September. As per this page, there are 886 days left in Bush’s presidency. If trends continue, when he leaves office the stats will be more like 4,450 dead and 33,000 wounded.