by DLA I assume you mean digital logic analyzer?
Standalone LAs are too expensive and dont seem to have nearly as many goodies as PC ones (parsing of various protocols, I2C, SPI, USART). I myself have a [DigiView which I like very much. I bought it before I learned about the [LogicPort from these forums. Its $100 less and has better specs. To be honest 18 channels is more than enough for most µC debugging applications. I dont think I have ever used more than 10 at a time in the year that ive had it.
I can only speak for the DigiView as that’s the one I have. The software woks good. Tech support is good and very helpful, and just good business practices. When i bought mine i payed (a lot) for overnight shipping. When there was a UPS problem and it turned into 2 day delivery they refunded my money with out any questions. I have never really had a tech problem with it.
Im sure the PC LA that sf sells is just as good.
As far as Oscopes go. I had similar questions in this thread:
The consensus seemed to be PC scopes are a pain in the ass. Your better off getting a stand alone DSO or scope. Tektronix TDS2012 is the one ive been looking at for a long time but it is expensive. $1k.](http://www.pctestinstruments.com/)](http://www.tech-tools.com/dv_dv1.htm)