The first drive (WD800BB) has 16 or 17 bad sectors. I'm not quite sure whether the event count stacks on top of the sector count, or what - but usually more than a few (1-4) bad sectors is a bad sign.
Code:
5 Reallocated_Sector_Ct 0x0033 198 198 140 Pre-fail Always - 16
196 Reallocated_Event_Count 0x0032 199 199 000 Old_age Always - 1
The drive has taken its first steps towards dying. My failed WD Greens increased slowly, reaching ~100 bad sectors a few months after their first ones showed up. Then they died and I RMA'd them. Make sure you backup everything you need from that drive.
The second drive (WD5001AALS) has next to no problems.
Code:
199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 1
That's usually caused by a SATA cable that slips just slightly loose. I got about 300 of those (rather than just 1) when I had one end of the SATA connector out a millimetre from the drive. I plugged it in quite sloppily, and then wondered why my benchmarks were at ~2.5MB/sec rather than ~120MB/sec.

None of those values can be reset, but if they hold where they're at, your drives are probably okay. Check them regularly - if any start going up, you have a problem. The bad sectors require the drive to be RMA'd, and the UDMA CRC errors usually require a SATA cable swap.
FYI, short SMART tests don't tell you much. They almost always pass. My favourite SMART test is the extended one. You can invoke it with smartctl.
Code:
smartctl --test=long /dev/sda
Or just use the GSmartControl GUI, etc.