One thing my dad always taught me, when you buy tools, buy the best. That may be a bit fanatic to some, but I very rarely have to buy a tool a second time.
Personally, I'd stick with DeWalt, Makita, or Delta. But others may have had good results with others. I've never been impressed with Ryobi stuff. IMHO

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past MB rides:
'68 220D
'68 220D(another one)
'67 230
'84 SD
Current rides:
'06 Lexus RX330
'93 Ford F-250
'96 Corvette
'99 Polaris 700 RMK sled
2011 Polaris Assault
'86 Yamaha TT350(good 'ol thumper)