exchange 2007 with exchange 2010

[kevin_lane]

has any one had any issue in putting in exchange 2010 with exchange 2007 already in place and things i should look out for

[sukh]

Should work fine without issue if planned correctly, use the EDA to help you - Exchange Server 2010: Exchange 2010 Help

[Zenden]

ive done the side by side migration recently and it was all reletively smooth. There is some great guides for this on msexchange.org which cover the main pitfalls. Well worth a read!