[quote name='DrunkTigerWoods']Actually I found out that my DVR box and manual are both labeled wrong and can take eSATA. So I'm looking for 3.5", SATA to eSATA, for as cheap as possible.[/quote]
In that case, you have tons more options.
Now you can get a enclosure that only has an eSATA external interface.
You can look at those here:
eSATA only
However, for a few dollars more, you might as well get ones that have an eSATA + USB interface just in case you ever need it more than just a DVR drive and you want to hook it up to a computer without an eSATA connection. (Plus there are more options for the eSATA +USB).
Those are here:
eSATA + USB
These are from NewEgg. Tigerdirect has some, but newegg has always treated me well, so I just stick with them. When looking at the available enclosures, personally, I wouldn't just choose the cheapest one. Read some of the reviews on them to see how well the cases dissipate heat, or if there have been problems with it.
On a side note, if you are looking to save a couple of more bucks, Microsoft Live gives cashback on purchases made from Newegg (3% back) and Tigerdirect (5% back). Just go to live.com and click "cashback" in the top right corner. You pay the full price up front, but 60 days after your purchase date, you can request payment from MS (as long as you have $5 from cashback stuff). Just throwing it out there.