Buy it.
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The next step is a 3mm beanie. You can just strap it on top your head either before or after the wetsuit, before or after the mask. Since I've got a huge bald spot, it makes a lot of difference for me, at negligible effect on buoyancy. Some days I'll even push sartorial limits a bit and wear it topside on the boat to avoid sunburning the top of my head.jjdub:I agree with Charlie99 and found the dives where we were only drifting to be the coldest.
danktex:I am very fond of my 3/2 when I am swimming into Sea Lice or Jelly Fish.
If he's going online, the Divers Direct has 3mm and 3/2mm wetsuits for $80-100reefugee:BTW - you can pick up 3/2 for pretty cheap ($170) at Divetank.com . You might be able to find other 3/2 for even cheaper.