Hellobee Boards

There was only one BBT thermometer at CVS the day I decided to chart, so I bought it! Looked the same as @MrsBells but a different brand. It was $10.

Amazon! It was pretty accurate but the battery did die pretty quick so buy batteries when you buy the thermometer! I could not find them locally anywhere!
http://www.amazon.com/gp/product/B001AM43VY/ref=oh_details_o03_s00_i00
wow! It was $8.74 when I bought it!

I used the Target brand. But temping didn't work for me (I wake up to pee during the night and it just created a lot of stress for me trying to find a consistent time that I could get a resting temp) so I can't really say if I thought it was good or not. I do remember thinking it took a long time to get a temp.

I have one from Target. Used it for the first time this morning!

I also found the Target one had favorite temps, plus the recall feature, where it showed the last temp, flashes SO quickly I couldn't always record it and I found it difficult to read.
I use the Nexcare one (purchased through the Couple to Couple League, but now it's cheaper on Amazon). It has a backlight, which I really like, and it displays the last temp for a while so it's easy to read and record it later. It does beep every 4 seconds while you are taking the temp to let you know it's working, which is a little annoying, but the backlight feature makes up for it for me.
If this is your first cycle TTC, though, honestly, I think starting to temp right now might be stressful. In your situation I might go a month or two before starting to temp. I found the first minth of temping to be a little stressful, trying to remember to take it on time, etc, but by the end of the second month, it's really easy and no big deal at all.

I used the CVS BBT, it worked fine!