I'm buying a digital multimeter for my boyfriend, he mentioned something about the fluke brand, but i'm not sure which kind to get (115, 87-5, etc.) I'd like to keep it around $150. He's doing a cooling system for his comp. so he needs one to measure temp. etc. I'm not really sure what i'm doing, so any information is much appreciated. Thanks!

Fluke is THE brand, but if he's not going to use it much there are plenty of other reliable ones out there. Here's a link, hope it helps.
Digital Multimeters, UEI

Is there a specific one that's good/does it matter? I was looking at the Fluke 114 but I'm not sure if that's good for testing a cooling system?

Fluke 177 will be in the price range. Any digital will work fine.

In a previous life as an Electrical Engineer I have used Fluke test gear and it they are THE name for DMM (Digital MultiMeters).

However, now as a computer geek I would buy a cheap one from Home Depot (or the like) and spend what I have saved on a water cooled heatsink for my computer or something.

If you want to buy your boyfriend one get a cheaper model and tell him to source out some thermocouples - they will will work with any DMM.

Martin

hmmm. i didn't know they made thermocouples for power supplies. im not that advanced yet. but why not.
thanks

Of dissimilar metals!

But then, what do I know!

Thermocouple - Wikipedia, the free encyclopedia

You can put one wherever you want! If you get my drift!

If you bought a temperature probe from Fluke is could well be one!

We use them all the time. 500 to 10,000 hp.many applications.

I am sure that you have a good price for a Fluke 179 with a temperature probe!

Type-K thermocouple with standard banana jack
Fluke 80BK - Fluke 80BK Integrated DMM Temperature Probe on MyFlukeStore.com