Sharepoint NLB with 2 WFE - hardware vs sofware, suggestions?

Hi Experts,

i'm working on a new 3 tier farm based on SP 2010 Standard
- 2 WFE
- 1 APP
- 1 SQL ( MS 2008 R2 x64 STD) 2 nodes, Active/Passive cluster
- SAN based on Dell PS6100XV or similar (netapp). icsci volumes for sql

the 2 WFE should work in NLB mode, but i have no idea about the pro and cons of using
Sofware (ms nlb) or hardware.

HAve you any suggestion? based on your experience. HW NLB, any model? prices?
what is better? SLA about 99,0 %

http://www.dell.com/downloads/global/services/dell_medium_sharepoint_farm.pdf

thanks
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ITDataCenterAsked:
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Justin SmithSr. System EngineerCommented:
Obviously, Hardware Load Balancers are going to give you better performance and more flexibility......but they can be expensive.  I've also used the out of the box NLB features of Windows Server or TMG, and they work just fine in certain situations.  

If you are expecting thousands of users on your farm, and especially if it's a public site, I would recommend spending the money and getting hardware.
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ITDataCenterAuthor Commented:
totaly we are talking about 4000 users, i don't know really how many concurrent connections will happen, do you think MS NLB is good enought?
have you any type of hw to suggest me for NLB? thx
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Justin SmithSr. System EngineerCommented:
You should consider a HW.  I've only used F5, which is one of the more expensive brands.

Or, you could start out with NLB and see how it performs.
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ITDataCenterAuthor Commented:
this went out of interest as corporate decided to move my sharepoint to their hosting.
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ITDataCenterAuthor Commented:
no comment.
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